43rd Annual Meeting – RATS Session, May 15, "New Inorganic Consolidants for the Restoration Market: Results From Nanomatch EU Project" by Adriana Bernardi

Dr. Adriana Bernardi was the presenter for this co-authored talk.  She is affiliated with Padua University, a senior researcher at CNR-ISAC (Institute of Atmospheric Sciences and Climate of the National Research Council of Italy), and head of the ISAC Unit of Padua.  First, Dr. Barnardi explained that 13 partners from 7 European countries were involved in the Nanomatch project.  This was a large-scale collaborative project with the aim of developing better consolidants for stone, wood, and glass artifacts.  Discussions of wall painting consolidation were included as well.  The developed consolidants had to be sustainable, react well with the substrate, and be safe to use.  This talk discussed the testing and results of several new consolidants.
For stone and wood the class of consolidants that Dr. Barnardi described were calcium alkoxides.  For glass, the consolidants were aluminum alkoxides (A18).  Dr. Bernardi talked about the strategy for developing these consolidants.  A mix of lab experimentation and field exposure was used in their development and testing.  Mock-ups were made of wall paintings, wood, glass, and stone artifacts for testing purposes.  Field tests were also done in several EU countries and Dr. Bernardi mentioned historical samples being tested as well.
The results of the Nanomatch Projcect were quite positive.  There was too much detailed information to include everything in this blog post, but here are some of the highlights:

  • Stone – developed consolidant had good workability and use, was comptablible with stone, and there was no color change.
  • Wall painting – good workability and ease of use, good aesthetic results but decreased concentration needed for some colors.
  • Wood – acid neutralization in alkoxide treated wood.  The consolidant acts as an alkaline supply.
  • Glass – consolidant A18 is highly compatible with glass (transparent, similar refractive index), good adhesion to glass, can penetrate cracks.

Dr. Bernardi showed videos during her presentation that demonstrated the use of the consolidants on stone, wood, and glass during Nanomatch training workshops.  In conclusion, the newly developed limestone, wall painting, and glass consolidants all seemed effective as consolidating materials, while the wood “consolidant” was more effective in acid neutralization.  If you’d like to know more about this project and the composition of the consolidants, visit the Nanomatch website for more information.
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43rd Annual Meeting – Electronic Media Session, May 16, 2015, “Archiving the Brotherhood: Proposing a Technical Genealogy for Time-Based Works” by Joey Heinen

Warning! If you are a techy, you will have to wait for the published paper for the complete technical details; read on if you can stomach a more philosophical overview.
I recently heard a thought-provoking presentation by photograph cataloger Robert Burton who quoted his mentor, Sally Buchanan, and then explained how cataloging is preservation. Joey Heinen pushed that envelope further for me with his recent Electronic Materials Group presentation on his archival work focused on The Brotherhood, a technology-based, interactive, kinetic artwork (1990-1998) by Steina and Woody Vasulka that no longer exists. Since the artwork can no longer be experienced as an installation, preserving the archival record of the piece is the closest we can get to preserving the work.
The only way to understand or study the work now is to imagine it through immersion in its archival record, and Heinen argued further that understanding the technology is as important as understanding the visitor experience when representing the history of the artwork, much as a traditional conservator might integrate a technical study of manufacturing methods into a conservation treatment plan. As part of his graduate internship, Heinen spent the better part of a year analyzing, documenting and processing a disassembled collection of components and archives that form the corpus of The Brotherhood. And so I pose a question to you: is this preservation, or is it conservation, both, or neither?
Have you ever made a robot move to the rhythm of your voice when speaking into a microphone? Made from scavenged vintage warfare machinery from Los Alamos, the Vasulkas jury-rigged hardware, composed software, and used midi protocols to connect the gadgets to inputs like microphones and video cameras that took input or signal from the visitors (both inadvertent and purposeful), resulting in a stimulus/response sequence that integrated the visitor into the artwork and its experience.
Now disassembled and on the verge of being donated to the Brakhage Center at the University of Colorado – Boulder University Library, the work was originally installed in several venues including the InterCommunications Center in Tokyo. The artists do not intend for the artwork to be reinstalled. However, as the work integrated cutting-edge technology of the time and pushed limits of technical and aesthetic experience, they would like the collection (consisting of the work’s physical components as well as their personal archival materials) to be able to be studied. While ample video documentation of visitors experiencing with the work exists alongside a paper-based archival collection, there was no handbook to guide Heinen in how to document and therefore preserve the elements of the work that are possible to preserve.
How did Heinen accomplish this? He went way beyond normal archival processing, and instead imposed order on what I overheard one audience member describe as “chaos on so many levels.” He examined not only the physical objects, but the archival documents (e.g. notes, drawings and instructions) that were part of the artists’ design process, and videos of visitors experiencing the artwork. The analysis yielded complex mappings of the various components and their relationships to each other. He delved into the software code, creating what he calls a technical genealogy, and traced the various types and connections between inputs and outputs.
What is left to do to facilitate researchers successfully accessing the collection? One could develop curriculum to guide exploration of this kind of media, perhaps in the fields of history of computer science, or media archaeology, or enrich the archival record with artist interviews. While it may seem like a unique, one-off type of preservation project, in fact, in digital experience realms, the skills and tools Joey developed to document this project could have broader applications in documenting web-based experiences as well. I’ll be honest, some of this talk was over my head, but the rest of the audience feedback was incredibly positive, and confirmed my reaction: Wow, what a massive amount of work, and thank goodness Joey Heinen did it, or it would all be lost!
Joey Heinen’s internship was funded through the IMLS as part of requirements for the Moving Image Archiving and Preservation MA program at NYU.

43rd Annual Meeting – Joint Painting Specialty Group and Research and Technical Studies Session, May 14, “Franz Kline’s Paintings: Black and White?“ by Zahira Veliz Bomford, Corina Rogge, and Maite Leal

Three works by Franz Kline in the collection of the Museum of Fine Arts, Houston were discussed with regard to their condition and construction: Wotan (1950), Orange and Black Wall (1959), and Corinthian II (1961). While the first two paintings exhibit alarming craquelure and flaking, the latter is in good condition. Rogge details the Museum’s investigation into the circumstances which lead to such differing states of preservation, presenting a clear, thoughtful look at Kline’s working methods and legacy.
Prior to this study, it was suspected that condition issues stemmed at least in part from the presence of zinc white, which Kline is known to have used; however, the causes of instability were not quite so “black and white.” The three aforementioned paintings were examined using a range of analytical methods, and an array of inherent vices were identified, including underbound paint, zinc/lead soaps, interaction with the gelatin sizing in the canvas, the thickness of paint layers, and the use of poor quality canvas. Kline also seems to have modified commercial paints.
It was found that Kline’s methods of layering paint and use of various materials was crucial to each painting’s relative (in)stability. It was suggested additionally that Woton’s integrity was compromised due at least in part to transportation. In the presentation, an animated map charted the painting’s transit, making the point of how excessively well traveled the work has been during its somewhat brief lifetime.
While treatment options for the paintings discussed were and are limited by inherent vice, the work undertaken to specify the various forces at play was remarkable: this talk above all highlighted the incredible ability we have today to begin to unravel the complexity of intertwined degradation mechanisms.

43rd Annual Meeting – Electronic Media + Objects, May 15th: “Conserving Anthony McCall’s Solid Light Films” by Jeff Martin

Jeff Martin, archivist and conservator, gave a talk about the conservation project of Anthony McCall’s Solid Light Films. It started in 2012, when Pamela and Richard Kramlich gave 6 film installations made by the English artist Anthony McCall in the 1970’s, to the New Art Trust (NAT) which has worked on the preservation and showing of time-based media works, since its creation by the Kramlichs in the 1990’s.
Martin started by presenting the artworks’ history. The 6 solid light films, made between 1973 and 1975, are 16 mm silver films, where “a white dot traces a circle on a black background; and when projected, it creates a volume cone.” The films were projected in different directions, and the viewer has to move around in the light. Then, in the early 2000’s, the digital files allowed an easier installation and projection (in particular, vertically). McCall took this opportunity to revisit his work of the 1970’s and created new installations on a digital support using digital projection.
Subsequently Jeff Martin introduced the conservation, presentation, and digitalization work done by the conservator and the NAT for the solid light films. These were first considered as traditional silver films, and consequently the choice has been to make exhibition copies. Though, creating 16mm films appeared to cause specific technical problems, the main one being the need to get a double perforated film, which is only available today by special order to Kodak, and is expensive. The obstacles led the conservator to think about making a digital remake of the films. In order to know if this option would fit with the artist’s intention, Martin interviewed McCall and collected pieces of information about the history and the technique of the solid light films. Martin précised he had been “very careful not to apply his own proposition but to respect the original installation.” Finally, the choice was made to project the original installation on 16mm films, and to create new masters for all of the films, but for the future, the question of the digitalization remains open, especially because McCall says that he changes his mind all the time!
To a photography conservator, this talk was interesting, as it was bringing a different point of view on photographic material preservation and presentation. Indeed, even if the McCall artworks’ physical materiality is photographic, its existence is the result of the light passing through the film and extending into space. In this case, what has to be preserved and shown is not as much the film in itself (which has to be preserved too), but the light manifestation that results of it, and the sensation produced to the visitor who can penetrate it, which could indeed be reproduced by a digital copy… especially as the artist switched to digital projection in his 2000’s creations.
Martin ended the talk by saying that all the work done to preserve the installations started from the original films and materials, and he emphasized on the collaboration with the artist, which has been essential to achieve this project.
 
http://www.anthonymccall.com/index.html

43rd Annual Meeting – Photographic Materials, May 14th: “Organizing a Photograph Preservation Workshop in West Africa” by Debra Norris

Debra S. Norris, Chair of the Art Conservation Department and Professor of Photograph Conservation at the University of Delaware, is enthusiastic about fund raising for art conservation. Along with her coauthors, Nora W. Kennedy and Bertrand Lavédrine, she encourages conservation education and the expansion of international networks for all conservators. These two major contributions for the conservation profession were the bases for the project presented during this talk: Organizing a Photograph Preservation Workshop in West Africa.
Norris started by evoking the need for photographic conservation in West Africa, and the previous projects organized in Sub-Saharan Africa by the Getty, ICCROM, the Ford Foundation, SIDA (Swedish International Development Cooperation Agency) and UNESCO. Then she presented the “3PA”: Préservation du Patrimoine Photographique Africain (Preservation of Photographic Heritage in Sub Saharan Africa), a collaborative project developed with Nora W. Kennedy, photograph conservator at the Metropolitan Museum of New York, and Bertrand Lavédrine, director of the Conservation Research Center (CRC) of Paris. Their goal is to work on the improvement of the preservation practice in this particular area of the continent, where the photographic collections are highly valuable but vulnerable because of the environment.
Last year, from the 22nd to the 25th of April, a workshop has been held at the Ecole du Patrimoine Africain (EPA), in Porto-Novo (Benin). It was called “Préservation du Patrimoine Photographique Africain: West African Image Lab“. 21 participants (80% of them were artists or photographers, the others were museum and archive professionals and curators) attended the workshop, and discussed the preservation of local photographic collections of West Africa; adapted solutions were proposed. Organizers were Jennifer Bajorek and Erin Haney, co-creator of the Resolution organization. Founded in 1998 with the help of UNESCO and ICCROM, and based in Porto Novo in Benin, the EPA school offers a professional training for 26 sub Saharan countries. It is a non-profit institution, dedicated to photographic collections in Africa, with a focus on preservation, collection management, and exhibitions.
Norris then evoked Nigerian photographers and collectors met by Nora W. Kennedy and Peter Mustardo, photograph conservator and director of the Better Image in New York, who went to Nigeria. She shortly presented the work of three of them: Andrew Esiebo, Abraham Oghobase, and J.D. Okhai Ojeikere, whose artist book, containing 200 photographs, was published a few months after he passed away, in 2014. Kennedy and Mustardo met his son who owns the collection.
As Norris aims to connect different conservation initiatives, she promoted the project “History in progress Uganda”, created in 2011 by a Dutch photographer and an advertiser. Their goal is to acquire and to diffuse images about Uganda history. According to Norris, this action, like 3PA’s, must proceed in connection with education and community organization.
She promoted the Center for Contemporary Art in Lagos (Nigeria), “an independent non-profit making visual art organization set up in December 2007 to provide a platform for the development, presentation, and discussion of contemporary visual art and culture” (see their website). Bisi Silvia, the founder, curator, and director of CCA was a participant of the 2014 workshop at the EPA.
For the future, 3PA’s goals will consist in organizing more workshops to teach the fundamentals in photo preservation in sub-Saharan countries. The conservation professionals will explain “the keys concepts in preventive conservation and materials”, spend some time on both hands-on and lecture, visit collections, and share some tools kits and published resources. Brainstorming sessions about techniques will follow. She emphasized on the fact that the 2014 workshop was the first talk about conservation in French and English in Africa. As photographers are an important part of the participants, development of conservation strategies for photographers in West Africa will be discussed. Funding for the workshop in photograph preservation was made possible thanks to many sponsors that Norris listed – AIC/PMG was one of them.
Some observations were done. First, to Norris, “community engagement and connections are clear” in Africa, which is a wonderful advantage. Then, the specific challenges: “lack of electricity”, and “dealing with material and digital collections simultaneously”. For the EPA, in Benin, where the workshop happened, the next steps will consist in “renewing commitment to preservation of photo collections”. Thanks to the “saving photo heritage” website, they began to rise money to create “a major center for photographic preservation, archiving, and digitization on the African continent”. Every one can help them!
The next 3PA workshop will be held in 2017 in Zimbabwe.
She finished the talk with a quick look on beautiful African textiles!
To discover the Nigerian photographers:
http://www.andrewesiebo.com/index.htm
http://www.abrahamoghobase.com
 
About the Center for Contemporary Art in Lagos: http://www.ccalagos.org
About the Ecole du Patrimoine Africain in Porto Novo: http://www.epa-prema.net
Resolution organization: https://www.resolutionphoto.org
History in Progress Uganda: http://www.hipuganda.org
To help Saving the Photographic Heritage: https://t160k.org/campaign/help-save-africas-photographic-heritage/
3pa

43rd AIC Annual Meeting – Book and Paper Session, May 15, "Preserving the Spirit Within: Bringing Twenty-Five Tibetan Initiation Cards into the 21st Century by Angela Campbell"

Tsakalis, early 15th Century opaque watercolor on 25 paper cards 16 cm x 14.5 cm (each card) Metropolitan Museum of Art Collection: 2000.282.1-.25
Tsakalis, early 15th Century
opaque watercolor on 25 paper cards
16 cm x 14.5 cm (each card)
Metropolitan Museum of Art Collection: 2000.282.1-.25

Angela Campbell, Assistant Conservator in the Department of Paper Conservation at the Metropolitan Museum of Art, presented the research and treatment of a complete set of Himalayan initiation cards (tsakalis) in their collection.  She focused on the condition, consolidation, and loss-compensation techniques done by herself, Rebecca Capua, and Yana van Dyke for this set. In conjunction with the treatments, there was a social media campaign to increase public outreach using this piece. For a great resource on the full treatment details, background, and purpose of these tsakalis, see the three posts available online through the Met blog:

I appreciated that Campbell addressed concerns of treatment consistency since the twenty-five cards were split among three conservators. Instead of having each conservator just do one treatment step for all the cards, each performed full treatments for 8 to 9 cards in the collection. Discussion was key, particularly in approaching the in-painting, and despite minor personal variations, a cohesive style was achieved.
Other rich questions that came up during the Q&A session focused more on the pre-treatment component of these cards. There was a question regarding the sacred nature impacting treatment decisions, which had only been brought up with the decision to maintain surface residues affiliated with handling. In conjunction with the sacred aspect, another question was raised about outreach and consultation with the surrounding Tibetan community in New York regarding the handling and treatment. While it was unclear if there was any contact before these cards reached the treatment stage, this comes back to a bigger question of who we perceive to be the actual stakeholders of the collections, particularly with cultural properties of living cultures.

43rd Annual Meeting – Book & Paper Session, May 15, "To Do or Not To Do: Two Examples of Decision Making of Digital In-filling for Asian Works of Art" by Hsin-Chen Tsai

Japanese and Chinese artworks, such as hanging scrolls, hand scrolls, folding screens and panels, have two components: the primary artwork and the mount. This talk focused on the treatment of the mounts for a folding screen entitled The Deities of the Tanni-sho by Munakata Shiko, and a hanging scroll entitled Standing Courtesan, by Keisai Eisen.
The current condition and the information carried by the mounting are balanced in making treatment decisions. When both the condition and the retained information are poor; more extensive treatment is carried out. This was the case for the folding screen. The original mounting paper was decorated using a Japanese fold-dying technique that created a repeating pattern that would be difficult to reproduce by hand. The author decided to make digital infills for this for three reasons: there was enough remaining original material for reference, the fills would not change the context and character, and it would be less time-consuming.

Folding screen before treatment.
Folding screen before treatment.

Here is a step-by-step of the process:
1. She took a digital image of an intact section of the mount.
2. She opened the image in PhotoShop and made adjustments to distortion, brightness, contrast, and color balance.
3. She printed onto a lined sheet of sekishu paper with an Epsum stylus Pro 4900 printer.
4. She matched the pattern with the losses and traced them over a light box.
5. After filling, there was some minor toning required.
For the scroll, Japanese paste paper had been used as the mount. It was an uda (clay-containing) paper with alum-gelatin sizing. It was hand-stamped in an irregular pattern and an uneven tone. The damage was typical of this kind of object: the mechanical action of rolling and unrolling led to horizontal damage and losses. Since the author was not able to guess exactly what the lost areas had looked like, she decided to infill using hand-toned paper without a decorative pattern.
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43rd Annual Meeting – Painting Specialty Group, May 15, “The Treatment of Dr. William Hartigan by Gilbert Stuart or the Treatment of Gilbert Stuart by Dr. William Hartigan,” by Joanna Dunn

Joanna Dunn presented an engaging paper centered on the treatment, history, and analysis of a painting by Gilbert Stuart at the National Gallery of Art. I was particularly interested in hearing about this treatment in detail, having seen the portrait in the late stages of inpainting in the fall of 2014.
The work’s label tentatively proposes the identity of the sitter as Dr. William Hartigan(?), a doctor who apocryphally saved Stuart’s dominant arm after the artist sustained an injury. According to the narrative, after his recovery, Stuart painted the doctor’s portrait out of gratitude. Thereafter follows an entertaining history of the painting’s subsequent owners, ending with the work entering the collection of the National Gallery of Art in 1942.
During varnish and overpaint removal, an object resembling a large apothecary jar was partially revealed behind the sitter: the presence of the jar supports the identification of the subject as a man of medicine. This discovery prompted cross sectional analysis of paint samples from the work and sparked Dunn’s investigation into the nature of multiple copies after the painting. The analysis showed that the artist had partially painted over the apothecary jar, but it was unclear to what extent he would have intended the object to be completely hidden and whether its visibility would have been affected by past treatments or the increased translucency of the paint over time. Additional questions centered on whether the original format of the composition was oval or rectangular. The clues offered by three extant copies towards answering these lines of inquiry were unfortunately largely circumstantial.
In the end, the treatment needed to be completed, and Dunn chose the most logical and likely path in light of the gathered evidence: the apothecary jar was left partially visible, and the composition remained in an oval format. Given the number of options deliberated during the treatment of the portrait, this presentation fit most aptly within the theme of “Making Conservation Work.” The wordplay in the title of this talk and Dunn’s humorous tone when reflecting about the sheer number of factors to consider in carrying out this treatment complimented her content and underscored the oftentimes futility of efforts to determine an ideal or concrete solution in conservation.

43rd Annual Meeting – “Investigating Softening and Dripping Paints in Oil Paintings Made Between 1952 and 2007” by Ida Antonia Tank Bronken and Jaap J. Boon, May 14

Issues encountered during analysis and treatment of contemporary artworks by conservation scientists, conservators, and other professionals have been brought into the limelight during recent years. Both in the United States and throughout the world, contemporary art collections have introduced new concerns regarding the use of modern materials, artists’ intent, and so on. Even the modern use of materials such as oil paints have demonstrated conservation issues. During this presentation, Bronken described her team’s research into oil paintings (created after 1950) which have exhibited softening and dripping media. The team’s research was conducted on works produced by Jean-Paul Riopelle (Canadian, 1923-2002), Pierre Soulages (French, b. 1919), Georges Matthieu (French, 1921-2012), Paul-Émile Borduas (Canadian, 1905-1960), Frank Van Hemert (Dutch, b. 1956), Paul Walls (Irish, b. 1965), Jonathan Meese (German, b. 1970), and Tal R (Danish, b. 1967).
Softened paint shows decreased surface gloss in normal light and drip material fluoresces in ultraviolet light (sometimes misinterpreted as fluorescing varnish). Softening/dripping impasto and thickly applied paints are easier to identify, but analysis has demonstrated the presence of softening in thinner paint layers as well. Possible causes of this phenomenon are the use of semi-drying oils in recent decades and the development of fatty acids in paint. In their abstract, the authors mention: “There is ample evidence from a number of paints studied by mass spectrometry that the exudates are rich in polar fractions with triglycerides with moieties of mid-chain oxygen-functionalised stearic acids and azelaic acids . . . observations led to the hypothesis that exudation is caused by a loss or absence of anchor sites for the acidic fractions that develop over time.”1
Details from Peinture (1954) by SoulagesTest area from the Seven Series (1990-1995) by Van Hemert
Lead II acetate and europium II acetate were tested by brush and gel application. These compounds treated the softening and dripping oil paint at the molecular level by penetrating into the sample to create carboxylates and forming a hard crust on the paint surface. Brush application was determined to be the most effective method. At this time, the only disadvantage appears to be the lack of reversibility.
 


 
About the Speakers

Ida Antonia Tank Bronken, Touring Exhibitions Coordinator, The National Museum, Norway
Bronken graduated from the University of Oslo with a Candidata Magisterii in Fine Art Conservation (2002) and a Masters in Conservation (2009). Bronken has been working for the Touring Exhibitions Department at the National Museum of Art, Architecture and Design in Norway since 2011. Her main interests are collection management and chemical change in modern paint. Bronken has cooperated with Boon since 2007 on different studies on softening and dripping paint, and has contributed to four papers since 2013 about dripping paint (currently at different stages of publication and review).2
Jaap J. Boon, JAAP Enterprise for Art Scientific Studies
Boon, PhD was trained in Geology and Chemistry at the Universities of Amsterdam, Utrecht and Delft Technical University (1978). He became Head of Molecular Physics at the FOM Institute for Atomic and Molecular Physics (1987) and Professor of Molecular Palaeobotany at the University of Amsterdam (1988). His first survey studies on painting materials and traditional paints were performed in 1991, which resulted in collaborative research with Tate Gallery London, the Rijksmuseum in Amsterdam, the Limburg Conservation Studio (SRAL) in Maastricht and EU supported development projects. His research focus changed gradually from identification of constituents towards chemical microscopy and spectroscopic imaging of pigments, binding media and their interactions in paintings. Boon was Professor of Analytical Mass Spectrometry in the University of Amsterdam (2003-2009) and is presently author/coauthor of about 400 research papers and supervised 33 PhD theses. Boon received the KNAW Gilles Holst Gold Medal for his innovative work at the cross roads of chemistry and physics in 2007.3
 
1 Bronken, I., & Boon J. J. (2015). Investigating Softening and Dripping Paints in Oil Paintings Made Between 1952 and 2007 [Abstract]. AIC Annual Meeting 2015 Abstracts, 81-82.
2 Bronken, I. (2015). Ida Bronken – AIC’s 43rd Annual Meeting [SCHED Speakers]. Retrieved from https://aics43rdannualmeeting2015.sched.org/speaker/ida_antonia_tank_bronken.1t1j0ku0
3 Boon, J. J. (2015). Jaap J. Boon – AIC’s 43rd Annual Meeting [SCHED Speakers]. Retrieved from https://aics43rdannualmeeting2015.sched.org/artist/boon1

43rd Annual Meeting – Book and Paper Session, May 16, “Unlocking the Secrets of Letterlocking to Reseal the Letters of John Donne and Other Early Modern Letter Writers", Jana Dambrogio

Jana Dambrogio, Thomas F. Peterson Conservator, MIT Libraries, presented the first of three sections in this talk – an introduction to the work she and others have been doing to discover letterlocking.
As letterlocking models were handed out to the audience, Jana began by defining letterlocking as “the folding and securing of any object so that it becomes its own sending device”. This is a 10,000 year tradition, Jana said, dating all the way from Mesopotamian clay tablets to Bitcoin.
Examples of letterlocking Jana showed included the letters of Tomaso di Livrieri at the Vatican secret archive and the letters of Queen Elizabeth I. Queen Elizabeth used more than ten techniques in her letters, often with two techniques per letter.
Jana described how letters of this type have traditionally been viewed simply as two-dimensional objects. But as a result of this research conservators and scholars are beginning to look at them as 2D/3D hybrids, and they must be treated accordingly.
Jana and her colleagues have been constructing models of the locking techniques based on evidence in the original letters. Jana believes that making models of letterlocking techniques is helpful because they are both a learning tool and a teaching tool for discovering and sharing the patterns.
If the goal in conserving these letters is to preserve their past function conservators are faced with the decision of what to repair and what not to repair, and the question of how to preserve the evidence.
During her talk Jana highlighted recent collaboration such as with Nadine Akkerman of Leiden University in The Hague, with Daniel Starza Smith of The University of Oxford, and with Heather Wolfe of the Folger Shakespeare Library.  See links to various demo videos, blogs and publications that have resulted from these collaborations at the end of this post.
 
Daniel Starza Smith spoke about applying letterlocking to literary history.
Normally scholars look only at the text they can see in letters. But now they are learning to look for folds, seals, and intentional damage – the damage that occurs as a result of opening a letter. These days Daniel asks himself ‘what other messages are there than just who the letter is from and to?’
He took us through some basic background on the development of the writing and sending of letters, from a manual for letter-writing, The English Secretary published in 1586 by scholar Angel Day, to the relatively modern invention of the commercially-produced paper envelope in the mid-19th century.
Daniel noted that the word “secretary” itself comes from the idea of secret keeping. A secretary is one entrusted with secrets, and literary scholars such as Daniel are occupied with revealing secrets and unpacking texts – now in a physical sense.
Delving into the letters of John Donne, Daniel revealed that Donne would use as many as four techniques in locking his letters. Why would you need four ways of locking? For various different purposes, including security and aesthetics. In fact there was even a class difference in the way letters were folded; your folding technique said something about you as a person. Some methods were simple and some were complicated – even “fantastically difficult” – and this reflected on your own sophistication and status.
Daniel concluded his talk with the following three main take-aways:

  1. Tiny bits of evidence are key in deciphering the folding/locking patterns, and these details are revealing about the history of communication.
  2. This research has the potential to reach further than just scholars
  3. The collection of Donne letters – from which much of this research has stemmed – numbers only thirty-eight. More data is needed, and this starts with conservators.

 
At the beginning of her portion of the talk Heather Wolfe emphasized three points that have come to light during this project.

  1. The importance of a three-way dialogue between curators, conservators, and scholars.
  2. This dialogue leads to discoveries, and informs decision making in conservation when considering whether or not to treat
  3. The need to standardize letterlocking vocabulary, referring to physical details. This is especially important in treatment documentation, and also for catalog searching.

In what Heather described as the “pre-envelope era” a letter was a single leaf that was transformed into a packet. Tearing was required in order to open the letter, and this is the damage we can see today that aids in reconstructing the locking patterns.
Communication with Jana was informative for interpretation of the collection at the Folger – Heather noted that the type of evidence in question tends to me more visible to conservators. For example, Heather no longer refers to the area bearing the address as the “address leaf” of the letter, but rather the address panel of the original packet. Heather went so far as to say that physical evidence such as the folds and intentional damage contains information critical to the interpretation of the letter itself.
She reiterated Jana’s remark that it is very difficult to imagine the folding and locking patterns without practice, and this is the reason they decided to make models.
In letters from the 16th-17th centuries there is evidence of hundreds of riffs on just a handful of basic techniques, such as the pleated letter genre, and the papered seal genre in which a strip is harvested from the letter itself to use as the locking mechanism. The many riffs tend to be associated with specific people.
Finally Heather took us on a whirlwind tour of these various letterlocking genres, but particularly highlighted the technique of binding a pleated letter with silk floss, first used by Queen Elizabeth I. Heather pointed out that while many letters would have been written in the hand of a secretary taking dictation, the nature of this technique suggests more intimacy. Letters of this type were usually written in the hand of the person composing the letter on high quality thin Italian paper.
 
Question and answer
Q: Have you seen any evidence of postal censors opening letters?
Heather said that she had not seen this specifically. But in the same vein she noted that a distinctive triangular-shaped 20th century Russian letter from the WWII front that was invented due to adhesive being forbidden.
Daniel pointed out that in the early modern period, people would sometimes employ a seal forger, in order to open and re-seal letters; he has seen some examples of this.
Q: Are you presenting these findings to archivists (specifically for the purpose of standardizing vocabulary? Where will you be publishing the vocabulary?
Heather said that the vocabulary is still in development, but that there are currently a lot of resources online, such as the MIT TechTV videos, the youtube letterlocking channel, and blogs. Heather has written in a recent British Library publication on pleated letters, and Jana has a forthcoming article.
 
Demo videos
Check out the video demos of letterlocking, hosted by MIT TechTV.
Blog posts etc:
A post by Heather and Jana at the Folger
Jana’s letterlocking website
Jana Dambrogio guest post on whatisaletter.wordpress.com
Publications:
‘Neatly sealed, with silk, and Spanish wax or otherwise’, a chapter by Heather Wolfe in the British Library’s In the Prayse of Writing