In etching process, any acid-resisting substance used to protect metal. Image may be drawn through hard ground with etching needle. A number assigned to a print in edition. Also called serial number. One of four categories of printing.
Ink is below the surface of the plate.
Heavy steel disk used to grain litho stones. Creates brush-stroke character in lines. A folding magnifier. Used to examine prints, plates, burins. Relief print made with a linoleum matrix.