Wednesday, February 17, 2021

Too Much Mending, Too Little Time

L: Bound cello music score, R: Detail of damaged cover

This 1917 volume of bound scores, from the collection of Luigi Silva (1903-1961), is part of the Cello Music Collection in the Martha Blakeney Hodges Special Collections and University Archives at UNC Greensboro. It is part of a set of several works bound together under the handwritten title Pezzi repertorio II (Repertoire Pieces II). This volume contains parts for a violin or violoncello and piano. The score also contains handwritten performance notes by Luigi Silva. Silva was a renowned musician as well as a teacher and scholar of the violoncello. To learn more about Luigi Silva, please visit the Luigi Silva Musical Score Collection and Personal Papers.

Damage to the cover on left and to the pages on right
Often, when we receive a damaged item in Preservation Services, we do not know the exact cause of the damage. This score is one such example. The front cover had been punctured by a sharp object, which caused damage through the cover and into the first 20-25 pages of the bound score. Because so many pages had been damaged, it was going to be a time-consuming task to mend the same hole or loss on all of the 20 or so damaged pages. 

Mending this type of damage requires careful consideration of materials. Though the score is unlikely to be used in performance any longer, it was necessary to ensure that the mend would remain flexible as the pages are turned by researchers or perhaps when the book is shared with a class. Mending tissues are often selected based on the type, age, and condition of the paper being mended. For example, a very brittle paper mended with a thick piece of Japanese paper would simply break again next to the mend, as the mend would be stronger than the paper itself.

L: Hole as it appears on one of the first pages, vs.
R: Hole as it appears on the last damaged page
The paper in this score was relatively stable in condition, so brittleness was not a concern. However, adding a Japanese tissue mend to each of the 20 or so damaged pages would quickly build up thickness in that one area that could be problematic in the function of the book. For that reason, a thin Japanese paper was used along with rice starch paste to mend each of the holes.

Another consideration in completing this type of mending is how much time is involved. Often in Preservation Services, we are able to go beyond basic repair and even restore a damaged item to close to its original condition. However, we must balance how and how often the item will be used in the future with how much time we can invest in its repair. Not every item warrants a full restoration.

L: The hole being repaired, R: Applying pasted tissue to the hole

In this case, the item may be used in the future by researchers, in a class, or in an exhibition, so it was necessary to spend more time in the conservation process rather than simply providing a protective enclosure for storage. To that end, in projects such as this one it becomes necessary to save time whenever possible as there are so many conservation projects in the queue. Not only do we conserve items in Special Collections and University Archives, but we are also tasked with preserving materials in the general circulating collections of Jackson Library as well as those in the Harold Schiffman Music Library on campus.

When time and space are not as much of a concern, or when working on a flat item such as a letterpress printed broadside, it would be common to allow each mend to dry under blotter and weight while working on another project at the same time. In the case of repairing this bound score, a quicker method was employed. A small travel iron on a very low heat setting was used to quickly dry each mend before moving on to the next one. So, mending more than 20 pages took a fraction of the time it might have. Applying heat is not always ideal, so the conservator must consider the type of materials being mended and what impact heat may have on the item.

L: Ironing mend to dry it quickly, R: Finished mend

For each mend, a substrate is placed under the page being mended. It consists of a piece of release paper (like parchment paper you might use in baking), which is layered over a cotton blotter on top of a scrap of book board. Rice starch paste is applied to a thin piece of Japanese paper torn to size and applied to the area of the page needing repair. A Teflon folder is used to press and smooth the tissue onto the paper being mended. Then, another piece of release paper is layered on top of the mend and the iron is used to apply heat to quickly dry the paste. The blotter underneath helps to absorb the moisture from the paste. In this way, 20 or more pages can be mended in a fraction of the time. Likewise, because a very thin tissue was used, the "stack" of mends did not build up into a thickness that might have impeded the cover from closing completely. So, the problem of too many mends and too little time was easily resolved.

As you see pictured below, the cover was also mended with a black Japanese paper. Two years ago, we posted another blog entry about mending the corner of a cello music score much like this one. Please click HERE to read about that repair.

Detail of repaired cover


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