Combs. An instrument with wire teeth used in marbling.
Compensating guards. Short stubs bound in the back to equalize space taken up by thick folded plates.
Creaser. The tool used in marking on each side of raised bands. Generally made of steel.
Cropped. Term applied to books which have been trimmed too much.
Crushed. Term applied to leather, generally morocco, which has been pressed so that the surface, naturally grained, is made smooth.
Cut edges. See Edges cut.
Cut flush. In very cheap binding the book is trimmed after the cover is on and edges of boards are cut flush with the leaves.
Cutter, or Cutting machine. A machine used for trimming the edges of books. Sometimes called guillotine.
Cutting boards. Boards similar to backing boards, except that they are not beveled. Used in trimming.
Cutting in boards. See In boards.