NNP

Incomplete Punch.  A blanking error in which the blanking punch did not push a blank completely through the strip metal but only scored the surface; it is later blanked at

a different position. When such a blank is struck it will exhibit the scored mark as a line, an incuse arc under the design; this may occur on one or both sides of the struck piece where the arcs are in congruent position. It is also called incomplete clip.

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