Punch. (2) The upper blanking, striking or piercing die; the trussell. The punch is driven into the pile, the die in the lower position, in a press to blank strike or pierce a working piece. Also the reduction punch which was used by hubbing to transfer the design into a die, usually without the lettering, added later. See tressell.
excerpted with permission from
An Encyclopedia of Coin and Medal Technology
For Artists, Makers, Collectors and Curators
COMPILED AND WRITTEN BY D. WAYNE JOHNSON
Roger W. Burdette, Editor