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Periodically, TSLAC Conservation receives a volume for evaluation that looks something like this:

Executive Documents of the House of Representatives, First Session, 52nd Congress, 1890

Executive Documents of the House of Representatives, First Session, 52nd Congress, 1890

This book presents an example of a binding with stubs. This example is unusually large, but its design serves an important purpose. When a book contains fold-out maps, the maps attach to the binding with a single paper hinge at the spine. However, the folded map creates much more bulk than the hinge. Many bound, folded maps can create a book that is thicker on one side than the other. The resulting book is not square; in storage, uneven pressure will cause the boards to detach and the sewing to break.

To compensate for this problem, a binder can create a series of paper or board stubs between each map hinge to bulk up the spine. These stubs keep the book in square and reduce the risk of future damage. Higher-quality modern scrapbooks also feature similar bulking devices at the spine to accommodate photographs, clippings, and other ephemera.

Stubbed bindings such as the one pictured above are sometimes flagged for conservation treatment simply because of their unusual appearance. Actually, their structure is a promising indication that the binder planned ahead with the book’s longevity in mind. The book pictured above has no major structural issues, despite its size. The visible damage to the spine covering is primarily cosmetic rather than structural.

One possible conservation challenge for this type of book pertains to the maps inside rather than the binding. Repeatedly opening and re-folding these maps will cause tears over time, especially in brittle paper. In a high-use volume, a conservator might consider removing and flattening the maps for safer access. This decision would balance researcher access with the rarity, condition, and artifactual value of the binding.

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