NNP

Half-dome.  A dentile in the shape of a small half hemisphere. Such ornaments are applied in hand engraving with punches (shaped like a dapple tool), in soft modeling material, or soft metal, with a beading tool.  See beading.

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