定義

• Clogged Letter.  The partial filling of minute cavity in the die forming only partially raised lettering. Loose particles of metal or debris lodge in the die cavity preventing a full relief letter being struck from such a die.  See filled die, missing letters.

  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

人际关系