NNP

Plain Edge.  An edge without reeding, lettering, engrailment or ornamentation. It is made by striking in a smooth collar, by trimming, or by turning on a lathe. A plain edge may be polished – either as part of the finishing procedure – or as part of a jewelry-like finish with polished rims and edge. See edge, polished edge.

excerpted with permission from

An Encyclopedia of Coin and Medal Technology

For Artists, Makers, Collectors and Curators

COMPILED AND WRITTEN BY D. WAYNE JOHNSON