Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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zig-zag endpaper

A type of ENDPAPER devised by either Douglas Cockerell or T. J. Cobden-Sanderson toward the end of the 19th century. The zig-zag endpaper is designed to eliminate drag on the fly leaves and text block, some thing usually accomplished by sewing the endpaper below the gusset so that it can expand with the movement of the board as the book is opened. Unfortunately, sewing the endpaper at only one point is structurally unsound, as it leaves the fly leaves, as well as the leather joint (if used), secured only by tipping. If the endpaper is sewn through both the fly leaves and the made endpaper, which is the usual practice, the advantage of flexibility is negated and drag results, which the endpaper was intended to eliminate. Also called "v" endpaper, "w" endpaper. (81 , 161 , 343 )

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