Nanocellulose Experiments in Art Conservation

Becoming Familiar with Nanocellulose

These days, nanocellulose can be found in everyday products, like compostable plastic-like bags; however, the use of nanocellulose is still in its infancy in terms of research and use in art conservation. (For example, these decomposable poop bags look like plastic bags, but can actually be tossed in your compost pile!)

Introduction

This post takes a look at how nanocellulose films might be used in art conservation. To dip our toes in, experiments at the Cincinnati Art Museum were performed with a group of conservators who work in different specialties: textiles, objects, fine art, photographs and bound materials. We tried out various types of nanocellulose films and how they might be applied to a range of materials.

Laura shows the high degree of translucency of the crystalline films she made in Indianapolis at a prior workshop

Cecile examines repairs on a war bond poster

What is Nanocellulose?

Nanocellulose is made up of nanoscale cellulose particles that come from different sources, like:

Wood: The most common source
Non-Wood Plants: Cotton, ramie, sisal, bamboo, and agricultural by-products. The decomposable poop bags mentioned above are made from corn starch nanoparticles!
Tunicates: Marine invertebrates, the only animals known to produce cellulose microfibrils.
Algae: Some species produce cellulose microfibrils within their cell walls.
Bacteria: Certain bacteria, like Gluconacetobacter xylinus, can produce cellulose microfibrils under the right conditions.

Types of Nanocellulose:

In conservation, the field has been experimenting with two main types:

Microfibrillated Cellulose (MFC): A mix of cellulose microfibrils from pre-delignified cellulosic materials. This type of nanocellulose appears cloudy once dispersed into a film format.

2. Cellulose Nanocrystals (CNC): Composed solely of the crystalline part of cellulose, exhibiting high crystallinity and a high aspect ratio. This type of nanocellulose appears clear in a cast film.

Where to Buy

Many labs and companies around the world make nanocellulose products like gels, nanopapers, and foams. Here are a few:

Europe: Technical Center of Paper (CTP, France), EMPA (Switzerland), Weidmann Fiber Technology (Switzerland), Aalto University (Finland), VTT Technical Research Center of Finland, KTH (Sweden)
North America: The University of Maine (USA), Forest Products Lab, Wisconsin (USA), American Process Inc., Atlanta (USA), Celluforce (Quebec), Kruger Inc. (Quebec)
Asia: University of Tokyo, University of Kyoto, Asahi Kasei

What We Bought

In Cincinnati, we experimented with two products purchased from Weidmann Fiber Technology in Switzerland:

Celova for Art Conservation, 500g Gel: According to the Weidman Fiber Technology website, the gel has a high degree of fibrillation and is recommended for technical applications like art conservation.

Celova MFC powder, 150 g: The powder is suggested for waterless and water-free applications.

During practical applications, the MFC powder did not react the same way as the gel during the film creation. The powder precipitated out and did not cast a homogeneous film.

Cecile’s initial tests with Solka-Floc Powdered Cellulose from Solvaira Specialties. It is a very fine, highly purified cellulose powder made from bleached wood pulp.

While it may have been a mistake in our method of production, my guess is the powder isn’t as well fibrillated for casting and wonder if that’s why it stayed out of solution.

Next, I am eager to try the CNC form, which appears to be available at https://umaine.edu/pdc/nanocellulose/.

What makes nanocellulose films unique?

High Purity and Stability: They’re almost pure cellulose, super stable, and have a neutral pH. They’re less affected by temperature and humidity than regular paper.

Strong Yet Delicate: Mechanically, they’re stronger than traditional paper in some ways but less elastic and easier to tear.

Remarkable Transparency: The nanoscale dimensions of the fibers eliminate light scattering, resulting in highly transparent films, often called “nanopapers.” The transparency is influenced by the film’s structural density, particle size (MFC or CNC), the source material, and the manufacturing process. In practice, this transparency reminded me of the appearance of glassine tape.

How are nanocellulose films made?

There are various ways to make nanocellulose films, but conservators use one main method (as the others are found in larger scale manufacturing processes).

Casting Film by Evaporation: A low-cost and easily reproducible method where a nanocellulose solution is cast onto a substrate like a silicone mold or a polystyrene petri dish, allowing the solvent to evaporate. This technique produces homogeneous films.

Interestingly, it took an extraordinary amount of time for the solvents to evaporate at the Cincinnati Art Museum. Even after placing the trays in a fume hood to encourage drying, it took many days for the films to form during a low RH in December!

Glass and polyester dishes are not recommended for casting onto as the films will not release from these containers.

**What are nanocomposite films?**

Simply put, nanocellulose is combined with an adhesive. During the film’s creation, the adhesive is added into the nanocellulose solution to enhance the film’s physical and optical properties. Common conservation adhesives added to films include Klucel G, wheat starch paste, methyl cellulose, and gelatin.

In our experiments, we used 5% Klucel G, 4% Methocel A4CP, and strained Zen Shofu wheat starch paste. Two batches were made of varying amounts of gel to see if there was a difference in thickness of the films (spoiler: I couldn’t tell a noticeable difference!).

For another batch, Cecile also added in some QoR Golden watercolors that have an aquazol-based binder for a bit of a brown-toned tint that might be handy for filling losses in photograph conservation.

Nanocomposite films created with 20ml of MFC gel with 5% Klucel G and 5% methocel added

Nanocomposite films created with 15ml of MFC gel with 5% Klucel G and 5% methocel added

Nanocomposite film with QoR raw umber and 25% Methocel

Applications of nanocellulose films in art conservation:

Nanocellulose film properties may be handy for use in art conservation for their:

High transparency and stability. Used as a repair material, the films blend into substrates and supporting fragile artifacts.
Compatibility with various adhesives
Minimal discoloration after aging ensures long-term stability and visual integrity of treated artworks.
Reversibility. They can be safely removed if needed.

Limitations to using nanocellulose films in conservation:

While promising, there are some downsides to consider:

Lower tear strength compared to traditional paper. The films are delicate and might not work for items that need to withstand a lot of use.
Water Sensitivity: the films are highly reactive to moisture and require different application repair techniques than traditional paper repairs. For me, I wondered if the amount of time required for the learning curve of successful application was worth the result over traditional paper repairs.
Long-term behavior of nanocomposite films and their interaction with art materials requires further research to ensure compatibility and prevent unintended consequences.

Testing the Films on Paper-Based Materials

Both pure nanocellulose films and nanocomposite films were tested on a non-collection items using a variety of techniques.

Pure films were applied with a range of adhesives while nanocomposite films were adhered either by remoistening/reactivating with solvents or adhered by applying additional adhesive to the film, in addition to what was mixed in during the casting.

While Cecile worked on a war bond poster, Obie worked on a garment, and Laura tested treatment on an ink jet print, I tried my luck on a map.

Together, we all tested a scrapbook owned by Kelly.

First applications on a dark and brittle substrate surprisingly reminded us of the appearance of glassine tape in specular light!

After multiple tries, Cecile impressed me with her application in the red “u” that blends in better than in the black and yellow regions on the war bond poster

My Successful Applications

I had best luck with the nanocomposite films but only when they were reactivated with the adhesive they were made with.

I used a map for a variety of tests on one item to compare results

For example, the 20 ml 0.2% MFC gel created with 0.6 g 5% methocel film blended beautifully into the paper when reactivated with 5% methocel. The methocel was brush applied thickly. See the repair below along the left side in specular light. It doesn’t even look like tape here! The repairs blend nicely. Between the two, I found the methocel nanocomposite film blended better than the wheat starch paste.

Repair on far left: Nanocomposite film made with 5% methocel was reactivated with brush application of 5% methocel.

My second favorite options were the pure MFC films adhered with methocel and wheat starch paste.

My Application Failures

I could not for the life of me find a way to successfully apply the nanocomposite film with Klucel G to a paper substrate without it falling apart during the process. Cecile had better luck while for me, it stuck to everything! I struggled both when it was reactivated with ethanol and when the film was brushed with the Klucel G solution. Plus, it was super shiny and didn’t help the paper lie flat.

Shiny repair on far left: Nanocomposite film made with 5% Klucel G was reactivated with dip in ethanol

I had even worse luck with the nanocomposite films when they were only reactivated with water. I could easily apply them to the paper, however, these performed the worst out of all the repairs, with the methocel nanocomposite film failing to even hold the tear together! See the two center repairs below in specular light. The wheat starch paste held, but didn’t want to hold the tear well aligned.

Failed repair in center: nanocomposite film with 5% methocel reactivated with water before adhering

Compared to kozo tissue repairs (on the same paper): the nanocellulose repairs overall were shinier (more akin to glassine tape in appearance!), but they didn’t seem to cause any planar distortions like the kozo tissue naturally wants to do. However, the kozo tissue blends visually into the paper better. The kozo tissue repairs are the ones with the tails sticking off the edge of the paper.

Repair on left: nanocomposite film made with 5% methocel applied with 5% methocel almost has a glassine tape-like appearance. Repairs on right with tails sticking off paper: traditional kozo paper repairs adhered with wheat starch paste

Conclusion:

Nanocellulose films offer promising potential for art conservation but require a learning curve to handle and apply. Their unique properties, combined with ongoing research and development, could lead to innovative solutions for preserving cultural heritage, but research on long-term stability, compatibility with specific artwork materials, and ethical considerations will be crucial for wider adoption in the field.

Health and Safety:

Pure nanocellulose gels and films are generally considered safe to handle.

Resources

Most of the info here comes from resources shared by paper conservator, Cecile Mear who organized our informal experimentations. Photograph Conservator, Laura Moeller also provided additional resources she gathered from a workshop held at the Indiana Historical Society in June 2019.

bpga36-20.pdf Detailed introduction to nanocellulose films use in conservation
Full article: A New Mending Material: Nanocellulose Film
Nanocellulose Films in Art Conservation: A New and Promising Mending Material for Translucent Paper Objects
bpga42-01.pdf Photograph conservation
bpga41-01.pdf Fan conservation treatment—application of nanocellulose in gel form
YouTube video: Practical techniques for creating nanocellulose film and the application of aqueous adhesives.
Canham, R. ” Nanocellulose Calculator.” Burr Oak Bookbinding. Article related to YouTube video.
Heritage Science. “Nano meets the sheet: Adhesive-free application of nanocellulosic suspensions in paper conservation.” Full Text.
Heritage Science. “New treatments for canvas consolidation and conservation.” Full Text.
Heritage Science. “Novel nanomaterials to stabilise the canvas support of paintings assessed from a conservator’s point of view.” Full Text.
Pinkney, J. “Nanocellulose for Conservation.” University of Birmingham.

Ashleigh Ferguson Schieszer – Special Collections Library Conservator

Variety of experimental tests. The reticulated dishes contain the MFC powder while the homogeneous films were created using the gel.

Preservation Lab update

The Preservation Lab, after 13 years of collaboration between the University of Cincinnati and the Cincinnati & Hamilton County Public Library, is embarking on an expanded mission to provide our expertise and services to the larger cultural heritage community.

Beginning in 2025, The Preservation Lab is transitioning to a regional lab model that is entirely managed, staffed and equipped by the University of Cincinnati. The Preservation Lab’s current staffing and location will remain the same during this transition.

The Preservation Lab provides the full suite of preservation services to the University of Cincinnati Libraries and, for a fee, to other cultural heritage institutions. The Preservation Lab’s expertise is in book and paper conservation, with services available in general circulating materials repair, single-item conservation treatment, housing, exhibition prep, and preservation consulting.Please visit The Preservation Lab’s new website at https://libraries.uc.edu/thepreservationlab.html for updates and more information.

Holly Prochaska, Head, Preservation Services & Lab at the University of Cincinnati

Historical Binding Structures with Julia Miller

This week the Preservation Lab and the Archives and Rare Books Library hosted a 2-day workshop with the conservator and book historian Julia Miller. The workshop, Identifying and Describing Historical Binding Structure: A Stacks Appraisal Workshop, provided the Preservation Lab staff, University of Cincinnati Libraries’ (UCL) special collections catalogers, and UCL special collections stewards an opportunity to strengthen their skills of historical binding identification and description. We honed our descriptive skills by examining collections from the Archives and Rare Books Library and models/exemplars from Julia’s personal teaching collection.

Julia Miller is in the fore ground holding a highly decorated book that is read with gold stamping and tooling. — Julia Miller presenting to the Historical Binding Structures class.

Thanks to Julia Miller, one of the most knowledgeable and giving people that we have had the privilege to learn from.

Thanks to Chris Harter for providing access to so many Archives and Rare Book treasures and a wonderful space to learn and collaborate.

Thanks to Catarina Figueirinhas for suggesting the course and being the on-site coordinator and organizer.

Lastly, thanks to University of Cincinnati Libraries for their continued support of staff professional development!

Holly Prochaska [UCL] — Preservation Librarian

Problem Solving: An Exhibition-Style Enclosure for a Collection of Lafcadio Hearn Japanese Bindings

This set of Japanese side-sewn, crepe paper bindings, or Chirimen-bon, came to the Preservation Lab housed in their damaged traditional Japanese wraparound case, known as a maru chitsu. The set belongs to the Cincinnati and Hamilton County Public Library, which has an extensive Lafcadio Hearn collection. This collection of volumes was printed by Hasegawa Takejirō, a Japanese publisher who specialized in books written in European languages on Japanese subjects. The Japanese Fairy Tale Series was one of the more popular series, beginning with six volumes in 1885; though this later collection only has five volumes of fairy tales. Lacadio Hearn was one of the foreign translators employed by T. Hasegawa.

Original enclosure laying on a table — Original enclosure

Five volumes withing the original enclosure, the enclosure is open — Original enclosure

Due to the high profile nature of Lafcadio Hearn for the library and the beauty of the bindings, the collection is often shown during tours and used for display, however, the crepe paper volumes, while in excellent condition, are extremely floppy, and they are also side-sewn, both factors make them difficult to handle and display. The original enclosure is also very fragile and damaged, and susceptible to further damage if used as an enclosure moving forward. For all these reasons, the curators wanted an enclosure that would not only store the collection long-term, but could also be used for display.

This proved to be a challenge, but a fun one. I started by making a couple of sketches and then a couple of models…

Three models pictured, two are collapsible cradles and one display stand with foam insert — Models – two types of collapsible cradles and one model of the display tray/stand

For the models, I had two main focuses: 1) a collapsible cradle that would house and display one of the volumes, and 2) a display component that would act as a tray or level within the enclosure and house the remaining four volumes, in two stacks of two, side by side.

I will always advocate for making a model if you are trying to work through a new enclosure or adjust an existing enclosure or display piece, like a cradle. For example, I knew that a normal collapsible cradle wasn’t going to fit the bill for these volumes. Instead, I was going to need a stiff, squared off spine piece built into the cradle to help support the bindings’ spines.

Closed collapsible cradle with volume inside — Closed collapsible cradle

Collapsible cradle opened, detailed image showing the spine support piece of the cradle, with volume inside — Closed collapsible cradle

One of the main areas I had to troubleshoot was the display tray, which would house the four remaining volumes. I knew I wanted to create a stand that would basically replicate one side of a collapsible cradle and have a 1/2 inch Plastazote foam insert, which happened to nestle the thickness of two volumes perfectly, that was covered in Tyvek. But I had concerns about gravity and reliability of PVA to hold the foam insert in place overtime. And I wasn’t happy with my initial ideas of how to remove the volumes (and also the original enclosure and collapsible cradle) from the insert(s), which consisted of a tab underneath the volume. It created friction that would ultimately cause damage to the actual volumes.

Ultimately, I am extremely happy with what I came up with. I think it functions very well, and checks all the boxes it needed to check. Safe, secure storage. Elegant display. User-friendly.

Display tray open, with four volumes in it, two volumes are visible and on display — Display stand open

Detail image of the display tray — Display stand open

The display stand includes a cloth tape inserted into the boards to keep it from opening too far, a foam insert covered in Tyvek, a lip to support the foam insert overtime, and two polyester film slings to aid in removing the volumes from the foam insert. The polyester slings proved to be an excellent solution for removing all the elements from the enclosure safely and easily.

For those interested in how some of the components were constructed, here are some in-progress images…

Photo showing the display stand being made — Detail of the turn-in for the display stand lip; cut similarly to how we cut our clamshell enclosure tray turn-ins

Foam insert being covered in Tyvek — Foam insert, vertical panels covered in Tyvek first

Tyvek cut in preparation for covering the foam — Foam insert, vertical panels covered in Tyvek first

Because of the way the trays/components of the enclosure are constructed, they are actually interchangeable. So if the “lower tray” with the original enclosure and collapsible cradle ends up on top of the display tray/stand, that’s not an issue at all. And there is a 1/4 inch Volara foam piece adhered to the outer tray of the clamshell enclosure, so whatever items are on top will be cushioned by soft foam in the enclosure.

Get a full tour of the enclosure by watching our reel on Instagram:

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Jessica Ebert [UCL] – Assistant Conservator

Archeological Textile Discovery in the Stacks: The Research

This is the first post of a four part series.

Discovery in the Stacks

When a collection of Egyptian mummy bandage fragments at the Cincinnati and Hamilton County Public Library was found in an area used to store uncatalogued flat materials, the lab was asked to play a role in providing better stewardship.

Discovered in the stacks: A mounted collection of six Egyptian textile fragments that date to the Ptolemaic Period (around 300-30 BCE), recto

Mummy bandage wrappings are rare finds in public libraries, and discovering that the materials where uncatalogued was not terribly surprising; having the specialized knowledge to catalog such a unique object may not have been available at the Public Library at the time of the acquisition. With no identifying marks, and mounted to an aged board, the provenance of these objects are unfortunately unknown.

Collection suffered from a lack of storage housing without identifying information, found by staff performing a collections inventory, verso

Concerned about their overall safety of the fragments, as they were attached to a brittle board that could potentially chip and break if mishandled, it was clear that a solution for long-storage was needed. Therefore, the items were brought to the lab for a comprehensive examination.

As a book and paper conservator with little knowledge of archeological textiles, the first step towards selecting a preservation solution was to better understand the fragments and conduct research on how to care for them. Because of the age and fragility of the items, my goal became to find a storage solution that could facilitate access while limiting handling of the actual objects themselves.

Examination

In order to conduct research, the condition of the individual fragments were fully examined with a variety of illumination techniques to better understand their composition. The collection was photographed with a DSLR camera in normal illumination, raking light, infrared, and ultraviolet fluorescence. The images revealed valuable information such as the possible types of adhesives used in mounting, the degree of linen loss, as well as the type of pigment applied to the linen.

Creating the photographic documentation also allowed me to reach out to other scholars, to inquire about their history, while providing high quality images.

Types of Photography Performed During Examination

Normal Illumination – General reference image
Raking Illumination – Shows losses in linen, brown paper linings, and breaks in board
Infrared Imaging – Reveals inscriptions hidden along stains
Ultraviolet Fluorescence – Exposes differing types of adhesives

Normal Illumination – Overall images were taken of both the front and back of the mounting board. Normal illumination images serve as general reference photographs, representing how we perceive the object in normal room lighting.
Raking Illumination – Reveals the surface topography, showing breaks, tears, and losses in both the linen fragments and the mounting board.
Infrared Imaging – A modified DSLR camera and specialized filters remove visible light and capture longer wavelengths than the human eye can see, revealing the carbon-based writing while allowing the stains to disappear, making the writing more legible.
Ultraviolet Radiation– Ultraviolet radiation produces a fluorescence that readily shows the two differing types of adhesives used to adhere the fragments onto the backings. The first adhesive used to adhere the fragments to a brown paper backing does not fluoresce, while an adhesive that is smeared onto the face of the backing board does fluoresce. This indicates that the fragments were adhered at different times to the two different substrates, first being adhered overall to a paper backing, then later mounted onto the board.

Research

Using the high-quality images described above, I reached out to experts in Egyptology and papyrology at the University of Cincinnati Classics Library and the University of Michigan to learn about the history of the objects. Right away, I was given extremely detailed information by generous colleagues.

One of the first surprising things I learned is that two of the fragments were oriented upside down. So in their mounted format, they were not properly represented. Perhaps even more exciting was the discovery that three fragments were able to be attributed to a priest named Wennofer! (There will be more about the history of the pieces in the second part of the series, stay tuned.)

Of Parts and Pieces

It was serendipitous that during my research one of the contacts I was put in touch with was Dr. Ann-Katrin Gill from the University of Leipzig. Dr. Gill happened to be in the midst of a larger project titled: Of parts and pieces: unearthing, reassembling, and documenting papyri and linen objects in US libraries. As you can imagine, she was thrilled to receive the treatment documentation of the Public Library’s fragments to add to the collection. We have hopes that should any other fragments belonging to these be discovered, perhaps they could become reunited.

Materiality

The Egyptian mummy bandage fragments, or cloth shrouds, are also referred to as archaeological linen textile fragments. I learned the following about the materiality of the fragments.

Inscriptions

Fragments contain either formal hieroglyphs (using pictorial characters) or cursive hieratic script (which is a later Egyptian shorthand writing system used by scribes). It was determined that the fragments likely date to the Ptolemaic Period (around 300-30 BCE) based on the writing style used during that time period.

Inscriptions are written in black ink with a reed or rush pen, referred to as rush ink. The ink appears to be typical of the time period, most likely carbon-based with a gum binder. The fragments when viewed though infrared imaging (see slide show above) shows the carbon in the ink absorbing infrared radiation, making the ink appear dark black in infrared images, while the organic staining drops out of the image .

20th Century Alterations

Lined with Brown Paper

At some point in the fragments’ history, the textiles were lined on the back in an acidic machine-made brown paper (reminiscent of brown craft paper tape). If you look carefully in the raking light image (see slide show above), you might notice the brown lining paper poking through losses in the textiles as a slightly darker shade of brown than the board support. Under UV fluorescence (see slide show above), the adhesive used in conjunction with the brown paper lining does not fluoresce. This adhesive was found to be readily water soluble and possibly a gum-based adhesive.

Trimmed Edges

You might notice the fragments are cut into odd shapes, likely they were trimmed to remove frayed ends and damaged parts. There’s no way to know if the fragments were trimmed before or after they were lined with the brown paper lining, however the edges are fairly consistent with one another. One could make the case they were trimmed at the same time.

Mounted to a Board

After lining, these fragments would have then been mounted to a board, with two identified as upside down (oops)! Faint patterns on the back of the paper board resemble off-setting from wood, likely caused by a wooden backing board in a frame. If these assumptions are correct, it’s my guess that the fragments were mounted then framed for the tourist trade, with the frame now lost.

Condition

Being mounted on an aged, unsupported, brittle board put the fragments at risk of breaking along with the board. Since the board already contained cracks and breaks along the edges, this concern felt urgent.

Despite the precarious storage and concerns surrounding the fragments being exposed to the elements, the textiles themselves appeared in fairly good condition for being over 2,000 years old! Viewing the fragments in raking light (see slide show above) reveals a considerable amount of linen loss throughout the textiles. However, it doesn’t appear that these losses were a recent incident in the past half century. The losses were likely present when the fragments were lined with brown paper backing.

Next Steps

Next steps were to prepare the objects for safe keeping in long-term storage. To do so, required research on possible treatment options to safely store the items in their proper orientations. Also, knowing that not all fragments belonged in context with each other was further justification to split the collection into separate parts. Read on for more discoveries in this preservation journey!

To learn more, check out the other three posts in the series. (Links will be made live as the installments are released.):

History – Historical information provided about the Egyptian inscriptions
Treatment – How the materials were treated after learning about their content
Storage Solutions – Individual solutions for separated fragments as well as storage as a collection

Acknowledgements

Katherine Davis, Lecturer in Egyptology in the Department of Middle East Studies at the University of Michigan
Suzanne Davis, the Associate Curator and Head of Conservation at the Kelsey Museum of Archaeology at the University of Michigan
Dr. Ann-Katril Gill at the University of Leipzig
Marieka Kaye, Harry A. and Margaret D. Towsley Foundation, Head, Conservation & Book Repair, University of Michigan Library
Obie Linn, Textile Conservator at the Cincinnati Art Museum
Ann Wuertemberger, Catalog Librarian at the Cincinnati and Hamilton County Public Library
Meredith Montague, Textile Conservator at the Museum of Fine Arts Boston

Ashleigh Ferguson Schieszer – Special Collections Conservator and Co-Lab Manager [CHPL]

Vivak, Velvet, and Vantage: Display Installation for FotoFocus 2024

Introduction

One of my favorite aspects of working for the Preservation Lab is the problem solving required to reach our clients’ goals. Whether performing treatments, building housings, or installing displays, we frequently find ourselves thinking outside the box to come up with custom solutions to unique problems.

FotoFocus

The problem solving aspect of the job was in full force with a recent display request from Art and Special Collections Reference Librarian, Sara Williams, for CHPL’s (Cincinnati and Hamilton County Public Library’s) participation in FotoFocus 2024 this Fall.

For those unfamiliar, FotoFocus is a biennial “month-long celebration of photography and lens-based art that unites artists, curators, and educators from around the world” (as described by the FotoFocus website). This year’s event was FotoFocus’ seventh iteration and encompassed 107 projects at 86 participating venues across Greater Cincinnati, Dayton, Columbus, and Northern Kentucky.

The Display Request

The theme for FotoFocus 2024 was Backstories, which focused on hidden stories within photographs that are not initially obvious. With this theme in mind, Sara Williams came up with the idea of highlighting stories hidden within one of CHPL’s most highly prized collection items: the 1848 Fontayne and Porter Panorama Daguerreotype. (For more information about this historic photograph, its preservation, and daguerreotypes in general, an earlier blog post I wrote on the subject can be found here.)

1848 Fontayne and Porter 8 full-plate panorama daguerreotype

To convey this idea, Sara requested that the exhibit contain surrogate images attached to the back of the display cases, with images popping out at varying degrees of depth, highlighting the idea that each subsequent image is zoomed in closer, just as the story within the images become more in-depth.

Constructing a Prototype

I am still relatively new to the world of conservation, and even newer to that of display installation. When confronted with a task I am unfamiliar with such as this request, I like to think about what needs to be achieved, and then brainstorm how it can be achieved practically using stock materials we have in the lab. I did not yet have the specs on the display cases or the sizes of the specific images, but Sara gave me several printed foam board images like what would be used in the display to run tests with. Most importantly, I knew the two following bits of information:

The display needed images attached to a cloth-covered wall within the display case.
The images needed the ability to be mounted at custom depths from the cloth-covered wall.

After some brainstorming with our head conservator, Ashleigh Ferguson Schieszer, we decided to try using Vivak to “pop out” the images at various depths.

Vivak is a copolyester plastic that can be easily bent into various shapes, yet retains its shape once creased. It is also clear, making it useful for displays due to its ability to blend into backgrounds and not detract from the featured objects.

We also decided to use our cubicle walls as a test site until we could get our hands on the actual cases, since attaching a support mount to a cloth covered wall was a unique challenge for us.

First Prototype

Attached to wall with two pins along top

I constructed the first prototype by creasing a small sheet of Vivak twice into a “J” shape. I poked two holes in the smaller lip of the “J” so that I could use pins to secure it to the cloth-covered wall, with the image adhered to the larger lip.

This was moderately successful. These would be easy to construct and the pins held the support’s weight. But I was concerned about the Vivak bowing under the weight of the images, especially for the ones that were to be at the furthest depth from the cloth-covered wall, as it was already wanting to sag without an attached image under its own weight.

Second Prototype

I made the second prototype into a “C” shape, so that there were two lips that could be pinned to the cloth-covered wall. My hope was that this would add more stability and reduce the potential sagging. This was certainly an improvement, but it still felt unstable, and I felt the Vivak pieces that needed to be longer still might sag.

Support with added base to combat sagging

I next added an additional support piece of Vivak along the back of this prototype so that the pins would penetrate it as well as the two lips, adding even more stability. This yielded the most favorable result so far, yet I felt like the process could be streamlined.

I wanted the “pop-outs” to be contained to one piece of Vivak, so for the final prototype so I extended the two lips of the “C” so that they overlapped each other making a square shape.

Final Prototype

Attached to wall with Vivak folds at top and bottom – still showed propensity to sag

Attached to wall with folds *along sides* – this eliminated the tendency to sag!

The final prototype gave the stability of the second prototype but was easier to produce as only one piece of Vivak needed to be cut. After constructing this successful variation, I had the idea to rotate the “pop-out” 90 degrees so that the creased section of the Vivak would be vertical rather than horizontal, eliminating any tendency for it to sag from these creases outward.

Installation

Sara had also requested that both the cloth-covered wall and base of the display be covered in black velvet to give the display a cleaner look, as the existing cloth had seen better days. This was accomplished by removing the boards, cutting enough velvet so they could be wrapped and completely covered on its exposed side, and then secured on their hidden underside using a staple gun.

The case before modifications, during deconstruction

The walls and base of the case were recovered with black polyester velvet

I had initially planned on using large “T”-shaped pins to fix the “pop-outs” to the cloth-covered wall, as they were abundant in the lab, and I felt the length of them would yield a stronger hold. However, upon attempting to test the prototype on the actual display case, it was discovered that the wall I assumed was cloth-covered foam was cloth-covered wood. As the “T”-shaped pins were long and not very sturdy, they would be extremely difficult to hammer into the wood.

I ended up using small ½” brass escutcheon pins. They are low profile and would be relatively easy to hammer into cloth-covered wood. I punctured 4 pilot holes through the overlapping “C” lips so the pins could hold the Vivak together, and then individual pins were hammered through the holes into the cloth-covered wood.

Long T-pins compared to the shorter escutcheon pins

The shorter pins were the perfect length to nail into the thin display case wall

Once the velvet was installed and the “pop-outs” were secured to the freshly velvet-covered boards, the images could be adhered directly to the Vivak using double stick tape, as they were surrogate images printed onto foam board.

Nailing the Vivak support to the display case wall

3M 415 double stick tape was used to adhere the surrogate images to the Vivak supports

The Display During Installation

Once the cases were modified with the black velvet polyester and the Vivak supports were nailed into place, the bases were ready for Sara to add additional components underneath.

View at an angle showing the varying depths of field

Three cases ready for final touches by Sara Williams

After Installation

The completed display, entitled Depth of Field: The Universe of the Daguerreotype went live on September 24, and was located on the 2^nd floor of the South building at the Downtown Main branch of CHPL through November 1^st. Sara Williams curated a wonderful series of images, featuring supplemental newspaper articles, city directories, images shot through a microscopic lens, and more to highlight both the scientific and human stories that are contained within this iconic Daguerreotype.

Captions describe:

The astonishing achievement of how the photographic images were captured outdoors when normally, daguerreotypes are produced indoors to control the complicated process.
How moisture and dust caused deterioration specks which are shown under 100x magnification and routinely monitored.
The panorama’s unique anoxic custom enclosure, where the absence of oxygen prevents further degradation.

Although the display is no longer viewable, its primary subject still is. The 1848 Fontayne and Porter Panorama Daguerreotype can currently be viewed in the Cincinnati Room of CHPL’s Downtown Main branch along with other fantastic displays curated by Sara. Be sure to check them out and be on the lookout for the return of FotoFocus in 2026!

View of the exhibit after installation next to the Story Center

Matt McCoy – Conservation Specialist [CHPL]

Are You Ready for Halloween?

With Halloween creeping up, it’s either a chance for you to unleash your spooky side or to totally panic and obsess over costumes until the last second. Ghost? Meh. Mummy? Boring. Werewolf? Too hairy. But if you work in a conservation lab, fear not. We have you covered!

This year, we’ve scoured the lab to create costumes that mix chilling creativity with eccentric conservation tools! Each costume has a difficulty rating, so you’ll know if it takes professional skill or just a wildly spooky imagination.

So, grab some supplies, get haunting, and remember: Conservation may be reversible, but goofy Halloween memories are forever!

Edward Scissorhands costume, woman in black holding many scissors

Edward Scissorhands
Difficulty level – Easy
Materials and tools needed:

Scissors, tons of scissors
Black clothing
Strong hands (those old scissors may refuse to work properly)

Note – Not recommended for the long-haired among us…so remember, safety first! Keep a safe distance, and beware of those “accidental” snips, unless your colleagues think that you desperately need “just a little trim off the top”.

Mock crime scene with woman pretending to collect evidence by a fake chalk outline

Crime Scene Tech
Difficulty level – Medium
Materials and tools needed:

Masking tape
Caution tape
Gloves
Lab coat
Tweezers
Scalpel
Thread (to mimic hair samples)
Binder’s board to create a body/chalk outline (create a tri-fold for easy travel)
Golden gloss/matte media (or anything that fluoresces) to create “blood” splatters
Polyethylene bags (to collect evidence)
UV lamp
Protective UV goggles
Fluorescent scale (optional)
Camera (optional)
Tripod (optional)
A strong stomach, not for the faint of heart

Note – For the body outline, just kindly convince a colleague to lie on the binder’s board. Nothing says “team building” like creating a fake crime scene!

The following costumes can be done as a group effort or a solo act – dealer’s choice!

Ghostbuster on the left, painting of old man at the center, conservator seated on the right

Vigo the Carpathian (Painting)
Difficulty level – Hard
Materials and tools needed:

Print out of Vigo the Carpathian – our Lab recently switched to a 17″ wide Epson printer, so we are unable to print large scale items, so Jessica skillfully created the painting with two printouts pieced together.
Corrugated board
Cloth tapes (to create handles on the back of the painting)
Gold spray paint
Double-sided tape
Black/dark clothing
Strong arms and captivating eyes

Note – For that eerie stare DON’T FORGET to remove the eyes from the print out…the creepier, the better!

woman dressed as paintings conservator seated in front of a painting

Sigourney Weaver (as “Paintings Conservator”)
Difficulty level – Easy
Materials and tools needed:

Lab coat
OptiVisor
Acrylic paints
Gloves
Cotton swab
Beaker with filtered water
Paint brushes
Vigo printing proof, as reference (optional)
Must not be easily spooked by creepy eyes staring into your soul

Note – We know we aren’t a paintings conservation lab, but I think we pulled it off…or at least better than the movie, I hope!?

Ghostbuster / Bill Murray as Dr. Peter Venkman
Difficulty level – Easy
Materials and tools needed:

Jumpsuit from your favorite brand (Dickies, Albion Fit, etc.)
Nilfisk GD 10 Back HEPA Vacuum (Proton Pack)
Print out of Ghostbusters logo
Double-sided tape
Portable fan (for special effects)
Must be courageous yet capture the whimsy and humor of Bill Murray! Ready for anything!

Note – A portable fan can really elevate the special effects for this costume! Just check out our Instagram reel to see for yourself…

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Happy haunting to you all! May the ghost tyrant and sorcerer Vigo (also known as Prince Vigo von Homburg Deutschendorf, Scourge of Carpathia, Sorrow of Moldavia, Vigo the Carpathian, Vigo the Cruel, Vigo the Torturer, Vigo the Despised, Vigo the Unholy¹) protect you in all your spooky endeavors!

Catarina Figueirinhas [UCL] – Assistant Conservator

Images by Jessica Ebert [UCL] – Assistant Conservator & Social Media Coordinator

Otto Ege: Villain or Hero?

Introduction

Otto Ege (1888-1951) was a real-life figure known for his involvement in the dispersal of medieval manuscripts. Whether he is considered a villain or a hero depends on the perspective and context in which his actions are viewed.

Ege was a book dealer and collector who gained notoriety for breaking apart medieval manuscripts and selling individual leaves or pages to collectors and institutions. He would disassemble bound illuminated manuscripts and sell them as separate pieces or as a collection of works, thereby dispersing the original works.

This is one of four Otto F. Ege collections owned by the Cincinnati and Hamilton County Public Library before treatment. It is titled Original Leaves from Famous Bibles, Nine Centuries 1121-1935 AD (call number R090 ffB582). It came to the lab for better long term storage.

Villain

From the perspective of some scholars and conservators, Ege’s actions are viewed as unethical today. By breaking up unique historic manuscripts, he caused irreparable damage to the cultural, historical, and scholarly heritage they represented. The dispersal of these manuscripts makes it challenging for researchers to study them as cohesive and complete works, leading to a loss of valuable historical information and artistic context.

Hero

On the other hand, some might argue that Ege’s actions had positive effects. By selling individual leaves, he made rare and exquisite artworks more accessible to a broader audience, including institutions and collectors who might not have been able to afford an entire manuscript. This enabled more people to appreciate the beauty and artistry of these ancient texts.

Conclusion

Otto Ege’s legacy is a complex one, and opinions about him vary widely. However, it is essential to note that Ege’s actions occurred in a different time when the appreciation for medieval manuscripts as complete works of art was not as prevalent as it is today. Modern views on preservation and the importance of maintaining cultural heritage have evolved significantly. Ultimately, his actions highlight the ethical and moral dilemmas surrounding cultural heritage and the need for responsible stewardship of historically significant artifacts.

Treatment and Storage of the Public Library’s Collections

The Public Library owns four collections by Ege. Each have been receiving treatment to better improve their long-term storage. After the smaller collections received successful treatment, this larger collection followed suite.

Treatment

In their original format, the manuscript leaves were hinged to floppy paper folders with windows cut out for viewing. The original hinges were thick cloth, and in many cases, no longer functioning as the hinges became stuck in place. This prevented viewing the backs of the materials. The flexible folders overtime became U-shaped and were in need of supports to keep materials planar, especially during handling.

Individual leaves were unmounted from the original paper folders and re-hinged with kozo tissue and wheat starch paste onto archival 2 ply mat board supports. The mat board supports were then placed within the paper folders. Unbuffered interleaving tissue was then added between the manuscript and the folder window for long term storage to prevent the edges of the window from catching or rubbing onto the objects.

Armenian manuscript hinged to 2ply mat board support, stored within the original paper folder

Interleaving tissue protects the face of the manuscripts from rubbing along the edges of the windows

Storage

While other collections were retained within their original enclosures with a protective chemise, this portfolio was acidic and deformed with broken ties, so two new corrugated banker’s boxes were created to retain the original enclosure and store the manuscripts separately.

Additional Resources

The Public Library also owns Ege collections titled Fifty Original Leaves from Medieval Manuscript Western Europe: XII‐XVI century (call number R096.1 ffF469), Fifteen original oriental manuscript leaves of six centuries (call number 096.1 ffF469f), and Original Leaves from Famous Books, Eight Centuries 1240 A.D. – 1923 A.D. (call number R094 ff069).

The collection Fifty Original Leaves from Medieval Manuscripts is digitized and is available online in the digital library.

There are also multiple copies of the printed pamphlet by Otto Ege titled Pre‐Alphabet days. Interestingly, Genealogy and Local History own two copies in different formats. One copy is a cased‐in hardback with a single sewn gathering while the other copy is a single gathering pamphlet sewn into a paper case. Both pamphlets are original formats that would have been offered to buyers at different price points!

If you’re interested in further treatment details, check out our treatment reports on the Digital Resource Commons by searching for Otto Ege.

Ashleigh Ferguson Schieszer [CHPL] – Special Collections Conservator, Lab Manager

Just Peachey: Jeff’s Conservation Hand Tools Workshop

For one week in July, 2024, the Preservation Lab busted out belt sanders and opened the elbow grease to host a workshop taught by Jeff Peachey, learning all about making, modifying and maintaining our own hand tools. Jeff, a book conservator and master tool maker, brought all kinds of fun machinery and exciting tools for us to learn from and use. From hacksaws to pencil sharpeners, Jeff’s tool collection is inspiring, and we all left the week with some amazing new additions to our bench.

A set of raw materials each participant received at the beginning of the week to shape into their own personal new tool set! Credit: Jeff Peachey

Delrin

We started the week off working with Delrin. Delrin, an acetal homopolymer plastic that appears similar to Teflon, was easy to shape with saws, files, scrapers and silicon carbide sandpapers. We burnished with sanding pads and polishing paper.

We started off with Delrin rods that we shaped into delicate heras. Heras are thin tools with spatula-like ends that Jeff says are great for delicate prying, inserting small amounts of adhesive, and lifting tape to name a few of the uses for this handy little tool.

We made a rough cut of the shape we wanted with the bandsaw, then smoothed everything out by going through a sandpaper grit progression. Once we’d crafted these, many of us tried our hand at making versatile Delrin folders. With lots of filing and sanding, this malleable Delrin was easy to manipulate into a variety of tool shapes, and no two tools were exactly alike.

A Delrin hera created by Holly. Credit: Holly Prochaska

Ashleigh uses a saw to shape her Delrin. Credit: Ashleigh Ferguson Schieszer

Jeff demonstrates how to work with Delrin. Credit: Ashleigh Ferguson Schieszer

Knives

Our second and third days with Jeff were all about M2 steel knifes, both sharpening them and making them. We learned all about using Jeff’s sharpening system and honed down our own Peachey paring knife. We also made two lifting knives out of Starrett 32T hacksaw blades by grinding the blades down on a belt sander and then taking them through the sharpening system with microfinishing films to achieve a sharp edge.

A progression of 3M Microfinishing Films adhered to a glass plate for sharpening. Credit: Ashleigh Ferguson Schieszer

A Peachey knife next to a sharpening system on marble. Credit: Holly Prochaska

Sharpening knives turned out to be a complex process – a burr must be formed at each grit gradient before moving on to the finer grind, and if your hand position is off this could take some time. Furthermore, the wrong hand position could yield a bevel angle too big or too small on the plane of the knife. We aimed for an ideal bevel angle between 11 and 13 degrees.

Specular light shows a raw bevel angle during sharpening, before it has been ground smooth on the first grit progression. Credit: Ashleigh Ferguson Schieszer

Additional Knife Features

Some people chose to add grooves into the sides of their paring knives for a more comfortable grip; some of us chose to wrap our knife handles in leather and make horse butt sheaths for them. Matt was the bravest of all and mounted a custom carved wooden handle to his left-handed paring knife.

Catarina finishes a groove on the belt sander to make it more comfortable to hold. Credit: Ashleigh Ferguson Schieszer

Grained Book Cloth

We also went over creating 19^th century grained book cloth on our third day. Through toning, glazing, then pressing with a die that has your desired pattern, it’s possible to create book cloth that mimics the textures of 19^th century book cloth. After going through the time-consuming process, the idea of making up large batches at one time became appealing.

Jeff demos coating a cotton muslin with acrylics and paste, pressing the coated cloth with screens to add a grain, then finishing with an egg glare. Credit: Ashleigh Ferguson Schieszer

Jeff’s samples he made ahead of the workshop

Wood and Bamboo

On our fourth day we learned all about wood and bamboo carving. Using a chisel, wood plane or hatchet, we created the crude shape we wanted our wooden tools to take. Then we got to work sanding until the wood was smooth, and created a more precise shape. A final finish with nose grease or wax was optional.

Jeff’s workbench after his wood carving demo. Credit: Jessica Ebert

Bamboo is great for creating thin, flexible tools. With our pieces of wood most of us created folders, but a few decided to make wooden handles for their knives or straight edges. Personally, my favorite tool I created the whole week was my wooden folder I made, though it was probably the hardest to create. I had to shape it using a small hatchet, then sand it for quite some time before it took on the shape that I wanted.

Jeff demonstrating how to carve our piece of wood using his proprietary bench hook. Credit: Jessica Ebert

Holly chiseling a piece of bamboo using a generic bench hook. Credit: Jessica Ebert

My new wood folder. Credit: Nicole Browning

Stainless Steel

Our final day with Jeff was spent shaping stainless steel tools, which to me was the hardest material we worked with, as it took a lot of patience with the belt sander, and the metal was prone to heating up quickly and potentially burning our fingers. We created straight edges or 45 degree triangles, and even learned how to drill holes and attach small handles to these tools. We also had a thicker piece of stainless steel for creating a folder, which I found the most challenging of all. The stainless steel was harder to manipulate, understandably, and much less forgiving than the wood or Delrin.

Two stainless steel folders made and engraved by Jessica. Credit: Jessica Ebert

We ended the week by testing the sharpness of our blades and doing a little show and tell of our favorite tools that we made. It was so amazing to see all the different tool shapes people were inspired to make based upon what they most used in their work.

My assortment of tools I made at the workshop. From left to right: bamboo lifters, two Delrin Heras, two lifting knifes, a Delrin folder, a paring knife and its sheath, and a wooden folder. Credit: Nicole Browning

Learning from Jeff was such an amazing opportunity, and it was so eye-opening and world-expanding to learn that so many of these tools we use every day can be created from our own hands.

Jeff did a fabulous job tailoring his tool-making workshop to the the availability of machinery and other logistics of our facility. As a result, the actual tools made in our version of this workshop vary from other workshops Jeff has taught, empowering us to keep making tools with our space in the future. If you ever have the chance to take this workshop, we highly recommend it!

Be sure to check out this Instagram post by Jeff featuring all of us showing off our favorite hand tools we created!

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Nicole Browning [CHPL] – Conservation Assistant

Meet Me at Main: Exhibit Prep for Reopening!

After a 43 million dollar renovation spanning three and a half years, the CHPL downtown library reopened July 12th, 2024!

In preparation for reopening, the Preservation Lab has been working closely with a variety of CHPL staff to prepare collection items and exhibit cases for display.

To celebrate the dramatic reveal of updates, we’ve provided before and after pictures of the Main downtown library followed by a sneak peek at some of the exhibits.

Main Library Before, During, and After Renovations

Installation of scaffolding for skylight maintenance

July 12th, 2024 – Opening Day! A view of the atrium with a new social staircase.

Exhibits

Exhibit prep work consisted of treatment, matting, creating custom supports, install on site (and more!) for eight different exhibits!

1. Eugenia Rhein Doll Collection

Eugenia holds a Spanish doll wearing a cofrades hat symbolizing penance, often worn on Easter

Located in the Nolan Room (namesake of John T. Nolan Jr, president of the board of trustees from 1951-1983, known as “Jack”), are a collection of dolls from all over the world, representing nearly 100 countries. The dolls were gifted to the Library by Eugenia Rhein who was an administration assistant and a deeply committed employee for over 40 years. During Eugenia’s extensive travels she collected the dolls from countries such as Kuwait, Algeria, Rhodesia, Korea, Pakistan, Whales and more. In the 1970’s the dolls were often used in displays at the library to tell stories about children from other cultures by the Children’s Librarian.

Image of Eugenia is courtesy of the Cincinnati and Hamilton County Public Library.

The Nolan Room

Now open to the public, this uniquely round room is located on the third floor next to the tower room.

During Doll Installation

Matt McCoy cleans the glass inside and out

Dolls were examined for condition during install. Dolls too fragile (or broken) were left stored in their corrugated clamshells. Dolls in good condition were carefully placed on stands, secured around their waste. Larger dolls required special strapping or additional supports to secure the object in place. Minor treatment was performed on site to repair dolls, reduce creasing in outfits, or clean dust and debris.

2. Veterans Exhibit

Located on the second floor at the top of the social staircase, a new purpose built space was built for the Veteran’s exhibit where artifacts are displayed in concert with stories provided by a digital exhibit and recorded interviews. The Book of Homage is highlighted with the pages turned periodically to reveal lists of names. Original War Bond posters, that were conserved and matted by the Preservation Lab, show the Victory Book Campaign requesting Americans donate books to their local library. War Bond posters will be rotated periodically to protect the vibrant printed colors from fading and the papers from darkening, but perhaps more importantly, show the wide range of art and messages conveyed during times of war.

New purpose-built Veterans exhibit the day of opening

One of my favorite war bond posters drawn by DR. SEUSS! (Not currently on display but available upon request.)

3. Real Art for Young Artists: Original Illustrations from Noisy Nora by Rosemary Wells

This exhibit, initially installed in the North building in 2019, was moved to the NEW children’s library location, now on the first floor in the renovated South building.

New Children’s Library

Updated Exhibit Location

The exhibit showcases original hand-drawn illustrations created for the book Noisy Nora, donated to the library by the author and artist, Rosemary Wells.

Original 2019 location in North building

Exhibit Preparation

Luckily, much of the exhibit prep work had already been completed in 2018 for the initial installation (you can read about the original conservation and matting of the illustrations here that are UV protected and waterproof!), but now it was time for maintenance and upkeep.

In particular, the glazing on the frames had developed an iridescent coating residue from well-intentioned cleaners. This made detailed viewing of the illustrations problematic.

Other issues stemmed from the art being at children’s height. The matting and glazing packages had come loose from the frames in a few instances from being pushed inward. Others, such as the illustration “Jack had gotten filthy” had been drawn on with yellow crayon. The crayon marks were not easily removable and needed evaluation by the conservation team to improve.

Despite these issues, due to our forward-thinking work in 2018, the tightly sealed matting packages kept the original artwork completely safe and undamaged. Improvements required adjustments to the frames only!

Before exhibit maintenance, the glazing of the matting package suffers from being drawn on by crayons

Before exhibit maintenance, a matting package was pushed into the frame

During treatment, the matting package is secured with strong nails to the inside of the frame rather than using the folding metal tabs

After treatment the art is secured in the frames and the UV coated glazing is clean

4. History of the Library

With the establishment of the Cincinnati and Hamilton County Public Library in 1853, it’s no surprise that it’s one of the oldest libraries in the county and thus full of history to highlight! This physical exhibition beautifully compliments the online virtual exhibit located here.

The physical exhibit is located on the 3rd floor in the Cincinnati Room along the connector where special collections are carefully monitored while on display with specialized light, humidity and temperature controls.

On view are captivating images of the iconic lost library of Vine Street as well as other branch locations, many of which are Carnegie buildings. You can also get up close and personal with past library technologies and special collection objects such as stained glass from the original Vine Street location.

View inside Cincinnati Room
Physical exhibit complements digital exhibt
Original stained glass fragments
Card catalog sorter
Stereoview, lantern slide projector, and paper piano rolls
Special collection ledgers

For this exhibit (and many others!), Conservation Specialist, Matt McCoy worked diligently to replace non-archival black felts at the base of the cases with fresh polyester velvet covered boards. This great improvement is not only archival, but no longer slips and slides when objects are set in place and it’s easily removable to clean crumbs of books off with a brush.

Matt created custom boards covered in polyester velvet in the lab…

5. Circulating Art Books

Located on the third floor of the South building, these stylish 1950’s cases were also refreshed by the lab with new bases of polyester velvet covered boards.

Currently on display are a variety of beautiful art books, sometimes referred to as coffee-table books. Unlike materials in the Cincinnati Room, these materials can be checked out and taken home!

Interested in an art book you see? Scan the QR code to check out any of the titles on display!

6. Birds of America by John James Audubon

Located in the reading room, named the Cincinnati Room, on the 3rd floor connector is where one of the library’s most famous special collection items lives. This item is proudly back on display after resting during renovations. It is the early 19th century double elephant folio known for its gigantic size: the Birds of America Vols. 1-4 by John James Audubon.

With pages that are turned once a week, their grandeur enables you to see the birds represented to scale! Even the flamingo is life size (albeit the neck is wrapped around the page instead of upright).

The Washington Sea Eagle is nearly four feet tall, located in Volume 1.

Exhibit Installation

Cleaning the cases was the first step before installation as they were covered in construction dust inside and out! Before main closed for renovations, the Cincinnati Museum Center modified these cases for us so that the beds pull out for easy access. Their generous modifications were provided as a thank you for loaning all four volumes of the Birds of America for their 2019 exhibit titled In the Audubon Tradition and were a wonderful improvement!

Volumes are protected with custom wrappers. Wrappers consist of strong but lightweight Dibond, archival corrugated board, cloth spines, and ethafoam sheeting secured with cloth ties.

Volumes are also covered in polyester jackets

These heavy books require at least two people to carry

Books are supported with hinging cradles from Benchmark Catalog. The cradles adjust to the weight of the book when pages are turned.

Polyethylene strapping attaches to back of the cradles with Velcro. Strapping protects pages from sagging due to gravity.

The digitized pages are available on a touch screen next to the display case. Nearby, the 1848 eight-plate daguerreotype panorama is also on display!

Supplemental Materials

Perhaps less well-known but just as captivating are the Nests and Eggs of Birds of Ohio. In nearby cases, these supplemental materials beautifully complement the Birds of America.

Read more about this amazing collection item that was recently on exhibit March 2024 at the Cincinnati Symphony Orchestra here and see images of the vibrantly colored lithographs. Or, check out the book America’s Other Audubon by Joy Kiser to see reproductions of the illustrations and learn about the female artist and her family who produced them.

The prospectus of Nests and Eggs is temporarily on display that may have been owned by the illustrator, Gabrielle Estelle Jones, used to entice funders

View the original Nests and Eggs by requesting the material in the Cincinnati Room

Check out and take home this reference material with reproductions of the illustrations and learn about the history of how they’re made

7. Satellite display of reference materials about the Birds of America

Located near the 1950’s cases on the 3rd floor of the South building are supplemental materials relating to the Birds of America. For example, John James Audubon also collaborated with his two sons to depict 150 plates of four-legged animals. While the Cincinnati and Hamilton County Public Library owns these two original volumes which can be viewed in the Cincinnati Room, this display shows reference materials relating to such items.

8. The Inland Rivers Steamboat Exhibition

This exhibit utilizes the Inland Rivers Collection at CHPL to illustrate the historic steamboat and river culture in the region. It is located on the 2nd floor connector.

While much of the materials in the exhibit are owned by the Public Library, some of the more unique treasures are on loan from the Cincinnati Museum Center who provided items such as a heavy life preserver made of cork and a leather-bound bible with handwritten inscriptions salvaged from steamboat wreckage.

Exhibit Installation

Exhibit Installation consisted of creating custom 3-D supports for special collection items on loan while CHPL materials were supported with flat mat board supports. Photographs were mounted to archival boards to prevent them from curling in changes of ambient humidity.

Creating a soft yet strong custom support for the life preserver

Three people are necessary to lift the vitrines safely over objects within these cases

This steamboat relic was previously mounted and matted at the Preservation Lab by Chris Voynovich

Steamboat salvaged bible needed strapping and a custom cradle to show the handwritten inscription

View of Inland Rivers Steamboat Exhibit from the opposite end of the connector

With so many exhibits and a variety of content for all ages be sure to head downtown and visit them in person!

Ashleigh Ferguson Schieszer [CHPL] – Conservator and Conservation Lab Co-Manager

Becoming Familiar with Nanocellulose

Introduction

What is Nanocellulose?

Types of Nanocellulose:

Where to Buy

What We Bought

What makes nanocellulose films unique?

How are nanocellulose films made?

What are nanocomposite films?

Applications of nanocellulose films in art conservation:

Limitations to using nanocellulose films in conservation:

Testing the Films on Paper-Based Materials

My Successful Applications

My Application Failures

Conclusion:

Resources

Discovery in the Stacks

Examination

Types of Photography Performed During Examination

Research

Of Parts and Pieces

Materiality

Inscriptions

20th Century Alterations

Lined with Brown Paper

Trimmed Edges

Mounted to a Board

Condition

Next Steps

Acknowledgements

Introduction

FotoFocus

The Display Request

Constructing a Prototype

First Prototype

Second Prototype

Final Prototype

Installation

The Display During Installation

After Installation

Introduction

Villain

Hero

Conclusion

Treatment and Storage of the Public Library’s Collections

Treatment

Storage

Additional Resources

Delrin

Knives

Additional Knife Features

Grained Book Cloth

Wood and Bamboo

Stainless Steel

Main Library Before, During, and After Renovations

Exhibits

1. Eugenia Rhein Doll Collection

The Nolan Room

During Doll Installation

2. Veterans Exhibit

3. Real Art for Young Artists: Original Illustrations from Noisy Nora by Rosemary Wells

New Children’s Library

Updated Exhibit Location

Exhibit Preparation

4. History of the Library

5. Circulating Art Books

6. Birds of America by John James Audubon

Exhibit Installation

Supplemental Materials

7. Satellite display of reference materials about the Birds of America

8. The Inland Rivers Steamboat Exhibition

Exhibit Installation

Bonus Images of Main

**What are nanocomposite films?**