Mostly used in the bookwork field, specific marks on the back of signatures indicating exact position in the collating stage. Also called binder's marks.
In printing, a set of numbered symbols that are printed on the folded edge of press signatures as a means of indicating the proper collating or gathering sequence.
Mostly in the book arena, specific marks on the back of signatures indicating exact position in the collating stage.
Stepped marks printed on the spine of the section so that any miss-collated sections are immediately visible.