pressmark

名词 pressmark:

1. a mark consisting of characters written on a book; used to indicate shelf location
   同义词：call mark, call number

press.mark

n.（名词）
Printing A notation or figure in the margin of a printed sheet indicating the press on which it was printed.
【印刷术】 印刷标识：在印刷纸张的边上的表明是何家印刷的标记或记号
Chiefly British A notation in or on a book indicating where it should be placed in a library.
【多用于英国】 书架号：书里或书面上表明该书在图书馆的放置位置的记号