Not only a clear illustration of traditional late 19th century pastedown trimming for half leather bindings, but an informative use of binders slang of the day: “cobbs” (for cobb paper, common at this time) and wonderfully descriptive “topper”. I’ll have to use it in class the next time I see this problem! It is still a common impulse for students to want to cover a mistake in a pastedown. This article is part of a series, dealing with pasting down difficult materials, including moire (or watered silks) and leather doublures.
Peachey Conservation 