NNP

Crimp Marks.  Evidence on a medallic item that at one time the piece had been mounted with crimping prongs of a crimped clasp hanger and this form of suspension attachment had been removed. Crimp marks usually are a triangular shaped surface depression, usually at the 12 o'clock position, in one or both sides of the piece and a bulging of metal at that point of the edge. While the purpose of a crimped clasp hanger is not to damage the medal, crimp marks are evidence that just the opposite has happened.

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