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 enclosureFive volumes withing the original enclosure (pictured after treatment)
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…
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.
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 stand openDisplay stand closed. A lip was added to support the foam insert overtimeDisplay stand closed with one set of volumes removedPolyester slings were created as a solution for removing items safely and easily from the enclosure
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…
Detail of the turn-in for the display stand lip; cut similarly to how we cut our clamshell enclosure tray turn-insDetail of the turn-in for the display stand lip; cut similarly to how we cut our clamshell enclosure tray turn-insFoam insert, vertical panels covered in Tyvek firstTyvek sheet cut in preparation for attaching to foamTyvek sheet cut in preparation for attaching to foamTyvek attached to the front of the foam pieceTyvek turn-ins cut
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:
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]
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
Extra scraps of horse butt, cherry, pear and box wood, Delrin, and bamboo: materials we used and experimented with during our workshop. Credit: Jessica Ebert
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 SchieszerAshleigh begins her groove. Credit: Ashleigh Ferguson SchieszerMatt’s paring knife is pictured with a wooden handle and leather sheath. Credit: Matt McCoyAshleigh’s German-style paring knife with a leather covered handle. Credit: Ashleigh Ferguson SchieszerKathy Lechuga’s completed hack saw lifting knife. Credit: Signature ConservationKathy Lechuga’s rounded French-style paring knife with a leather covered handle. Credit: Signature Conservation
Grained Book Cloth
We also went over creating 19th 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 19th 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.
Holly drilling holes in the stainless steel handle of her straight edge. Credit: Ashleigh Ferguson Schieszer
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!
Illustrations of the Nests and Eggs of Birds of Ohio are on display at the Cincinnati Symphony Orchestra March 1st and 2nd as part of a musical program honoring Oliver Messiaen who was both a major composer of the 20th century and an ornithologist.
Synesthesia
Oliver Messiaen is well known for studying bird songs and interpreting their notes into musical transcriptions. His works are also unique in that Messiaen experienced synesthesia which greatly influenced his creations. Synesthesia is when a person perceives more than one sense at a time, such as Messiaen who experienced colors when listening to music and was able to see sounds.
Cincinnati Symphony Orchestra Program
The program at the CSO honors Messiaen by incorporating both music, color, and bird visuals to invite the audience to experience a unique multi-sensory experience. Messiaen’s Des canyons aux étoiles (“From the Canyons to the Stars”) will be performed by the conductor, Matthias Pintscher, and pianist Pierre-Laurent Aimard.
Click the image for a link to the digital program for the CSO Proof: From the Canyons to the Stars
“Inspired by his visits to Utah’s Bryce Canyon and Zion National Park, Messiaen’s Des canyons aux étoiles (“From the Canyons to the Stars”) depicts the birdsong and red rock hues he experienced during his time in the desert… Accompanied by immersive video-art, Springer Auditorium will be transformed, allowing listeners to escape into the southwestern landscape and experience a synesthesia of their own.” – As described by the CSO website
Nests and Eggs
Complementing the musical performances, on display will be a page from Cincinnati and Hamilton County’s Illustrations of the nests and eggs. The page showcases a local Ohio native, the Wood Thrush, who lays bright blue colored eggs within a nest made of old leaves, dried grasses and moss (rarely sticks). The nest of the Wood Thrush also contains “rootlets” placed intentionally inside of the nest, resulting in a pinkish brown or black lining. The nest is “plastered” with a thin mud that is easily missed as it’s thoroughly worked in and covered.
Nests and Eggs, while lesser known than Audubon’s Birds of America, is quite extraordinary in how it highlights the uniqueness of the construction of nests made by different bird species. Take for instance, the Baltimore Oriole’s nest, which primarily consists of strings and flax fibers to create a soft and long pocket. Compare that to the more traditional nest of the Wood Thrush whose home is bowl-shaped with a wide opening.
Baltimore Oriole – Plate 1
Wood Thrush – Plate II
It’s also extraordinary that the illustrations are detailed lithographic portraits created by Gabrielle Estelle Jones and her family, despite not having been formally trained. Their work was intended to be used as a companion volume to John James Audubon’s Birds of America. While not as large as the Birds of America double elephant folios, Eggs and Nests is still an impressively large-sized volume.
Gabrielle “Gennie” Estelle Jones
The following excerpt was written by Sara Williams, Arts & Special Collections Reference Librarian:
Illustrations of the Nests and Eggs of Birds of Ohio was a project begun by Genevieve Estelle Jones, a native of Circleville, Ohio. Born May 13, 1847, Genevieve, or Gennie, spent much time as a young girl birdwatching in the woods and wetlands with her father, an amateur ornithologist. Just before the age of 30, Jones’ father forbade her from marrying the man she loved, and in 1876, she visited the Centennial World’s Fair in Philadelphia to take her mind off her broken heart. While there, she viewed hand-colored engravings from John James Audubon’s vibrant The Birds of America. Inspired by Audubon’s example, Jones set out to illustrate the nests and eggs of birds, an aspect often missing from his work. Jones completed only five illustrations for her book before she died of typhoid at the age of 32. The work was eventually completed by Genevieve Jones’ family. Only 90 copies of the book were published, of which only 34 are currently known to exist.
Preservation
As part of the Preservation Lab’s role in displaying the object, a condition report book was created to accompany the item to ensure the object’s condition is preserved. This helps those who are installing anticipate any possible challenges in supporting fragile pages or bindings. In this case, the upper endsheets are extremely brittle and have been previously repaired, but could break again if not carefully draped and held with polyester strapping in a safe manner.
After determining a proper exhibit case to fit and secure the binding, a custom cradle was made. To protect weak points of the binding on display, a support was constructed out of 8 ply museum mat board to support the heavy and oversized pages from stress along the joint.
Solutions were tested to fit within an 18 inch deep case, however, the book was just too large!
A custom 8 ply mat board cradle was created to fit within a more appropriate 4 ft case. Pages are strapped with polyester strapping
Before an object travels, it’s often reviewed to make sure it can handle transport and treated if necessary. Luckily, in this case, the binding was treated in 2016 and is still in great condition for its age. When it received treatment, at that time it received a lightweight yet strong enclosure that will also work well to safely protect the item for travel to the CSO.
Corrugated banker’s box with a drop spine houses the Nests and Eggs book. Binding and exhibit labels are ready for packing.
A 4-foot case was kindly loaned to the CSO from the Behringer-Crawford Museum and is ready for use! (Image credit: Amber Ostaszewski)
Entrance to the Founder’s Room
Bird sounds were played in the entryway
During staging of the exhibit
Nests and eggs on display in the Founder’s Room
The Founder’s Room
Night of the performance
Entering the theatre
Not visible are the camping chairs and fire pits in the orchestra pit
Additional Resources
Interested in seeing more Nests and Eggs? The entire binding is conserved and digitized where it is made publicly available online. More information about Gennie’s fascinating and tragic history can be read at the Linda Hall website.
CSO Program Dates
There are two programs where you can view the item on display, Friday, March 1st and Saturday, March 2nd, both at 8pm at the Music Hall. Interested? Click here for the digital program.
We hope to see you there!
Ashleigh Ferguson Schieszer [CHPL] – Book and Paper Conservator, Co-Lab Manager
Last year around this time, the lab was fortunate to bring in book conservator and toolmaker, Jeff Peachey for a week-long intensive workshop to learn leather rebacking. While I always expect to walk away with new anticipated skills as advertised by the workshop, I’m ALSO always pleasantly surprised by the tangential tips and tricks shared along the way. In the case of Peachey’s workshop, there were many! One of my favorites was his use of a fish gelatin.
Introduction to Cold Fish Gelatin
While adhering spine linings to our text blocks, Peachey pulled out a small baggie of fish gelatin he brought with him to the workshop. He poured the dry flaky powder into a small jar, added room temperature cold water, and mixed it until a liquid-y consistency. He then added strained wheat starch paste to the gelatin and mixed with water until he was happy with the consistency. He estimated it was a 40:60 ratio of gelatin to paste.
Jeff Peachey taught a workshop at the Preservation Lab in Oct. 2022 where he first introduced us to a low-bloom fish gelatin for book conservation that didn’t require heat for use
If you’ve ever used gelatin before, you might be wondering – how is it possible to mix the gelatin without heating? That’s the beauty of this product – it has a high molecular weight with low bloom strength and is produced from cold water fish which gives it this ability. It might not be the strongest of the films with a 0-bloom strength, but for a book conservator doing paper repairs that need to be reversible yet strong, this combo still had an amazing tack when dry!
Peachey explained he first heard about the gelatin on a lab tour at the Weissman Center. He recalled Alan Puglia might have been the one who originally investigated the adhesive for pigment consolidation of hundreds of manuscripts for a show. The mention of a high molecular weight Norland fish gelatin was shared during a talk given at the American Institute for Conservation’s 44th annual meeting. The talk was titled, The Challenge of Scale: Treatment of 160 Illuminated Manuscripts for Exhibition,” by Debora D. Mayer and Alan Puglia.
Peachey also doesn’t take credit for mixing the gelatin with wheat starch paste. He notes that even in Rene Matin Dudin’s 18th century manual, it discusses the “union” of paste and glue in the last paragraph below.
Peachey shares an excerpt by Rene Matin Dudin descripting his 18th century historic use of gelatin mixed with paste.
By the end of the week-long workshop, I had fallen in love with the properties of how well it adhered. By itself, the fish gelatin had a long working time and didn’t stick until it was nearly dry – but when mixed with wheat starch paste, it combined the best of both worlds. There was both the initial tack from the paste and a strong adhesion from the gelatin after dry. I wasted no time in ordering my own sample supply.
Treatments Testing the HMW Fish Gelatin
Over the past year, I’ve slowly incorporated the fish gelatin in treatments and testing more applications.
I first successfully used it to hinge-in heavy encapsulated sleeves into an album containing lung cross sections. After ultrasonically welding a paper hinge into an encapsulated sleeve, I applied the mix of wheat starch paste and fish gelatin to adhere the hinge to the scrapbook stubbing and had wonderful success. I was able to adhere with confidence that the encapsulation would stay in place and was able to avoid disbinding and resewing. At one point during treatment, I found I needed to reposition a hinge. I am happy to report the mixture was as easily reversible as wheat starch paste alone!
Ashleigh Ferguson Schieszer uses the 40:60 mixture of fish gelatin and wheat starch paste to hinge encapsulations into an album, ensuring the heavy encapsulations with paper hinges stay adhered.
Most recently, I played around with using it for photographic emulsion consolidation. I used it first as a barrier layer before inpainting, and then to add sheen to in-painted photograph regions that were originally matte in comparison to the surrounding gelatin coating. It seemed extremely easy to apply and clean up was less messy than other photographic gelatins I’ve used in the past. The sheen was just the right amount of gloss I needed without being overly shiny. And, best of all, no heat required.
Before in-painting emulsion lossesAfter in-painting emulsion
Examples of photographic condition issues where the fish gelatin was tested: flaking emulsion was consolidated and a barrier layer was applied before inpainting
We’ve also used the gelatin to stabilze breaks in a wooden box originally used to house a Richter’s architecture game from the early 20th century.
Before TreatmentInserting fish gelatin with syringeClamping box during the curing process
Jeff Peachey’ main use is to line spines. He’s found it not only has better adhesion than straight paste, but makes the spine feel slightly more solid and resistant to torsional forces
Applying fish gelatin to adhere spine linings
In the future, I imagine this gelatin would have excellent potential in media consolidation.
In all these uses, I couldn’t be more thrilled to not have to pull out my baby bottle warmer to set a beaker of gelatin on. As a result, there was no fuss in worrying about how long the gelatin was heated and if it was losing its properties due to heat.
Example of using a baby bottle or coffee warmer to re-heat pre-made gelatin during typical use
In terms of shelf life, the dried granules can be kept indefinitely like unmixed wheat starch paste. Once mixed, Jeff suggests that he’s found the adhesive properties hold up for about a week in the fridge; however, it does begin to smell fishy after just a day. So unlike wheat starch paste, if you’re adverse to the fishy odor, you’ll only want to make up as much as you’re planning to use for one day.
Supplier Info
Interested in getting your hands on some?
I found the product used at Weisman is no longer supplied by Norland – but I was able to track down what appears to be the same product through AJINOMOTO NORTH AMERICA, INC. If you’re interested in trying a sample, message Henry Havey, the Business Development Manager of Collagen & Gelatin at haveyh@ajiusa.com to request a sample of High Molecular Weight (HMW) dried fish gelatin.
Fish gelatin sample acquired by the lab in a 500 gram sample bag
They provided me with a 500- gram sample at no cost and confirmed it was a Type A fish gelatin with a 0-bloom strength. Henry Harvey can also provide a pricing quote should you be interested in ordering a full supply which comes in 25 kg packs. They also provided the following product data info sheets:
While I still covet my isinglass cast films I created from boiling dried fish bladders, as well as our mammalian photographic grade type B gelatin, this HMW fish gelatin is a welcome addition I’ve added to my tool kit.
Ashleigh Ferguson Schieszer [CHPL] – Special Collections Conservator, Co-Lab Manager
Bibliography:
Dudin, M. The Art of the Bookbinder and Gilder. Trans. by Richard Macintyre Atkinson. Leeds: The Elmete Press, 1977, p. 51. (Originally 1772)
Foskett; An investigation into the properties of isinglass, SSCR Journal; The Quarterly News Magazine of the Scottish Society for Conservation and Restoration, Volume 5, Issue 4, November 1994, pages 11-14
Nanke C. Schellmann, Animal glues: a review of their key properties relevant to conservation, Reviews in Conservation, No. 8, 2007, pages 55-66
