(Bookbinding) One or more separate leaves inserted in a volume before binding; as:
(a)
A portion of the printed sheet in certain sizes of books which is cut off before folding, and set into the middle of the folded sheet to complete the succession of paging; also called offcut.
... if you're in earnest," he answered. "I'll give you twenty- four hours. Look in to-morrow afternoon, and see Finch. It will be for the Sunday Post—the Inset. We use surfaced paper for that and can do you justice. Finch will arrange about the photograph." He held out his hand. "Shall be seeing you again," ... — All Roads Lead to Calvary • Jerome K. Jerome