定義

• Inversion.  A numismatic design part of which is upside down by intent. An example would be the bishop who is turned into a clown when the medallic piece is rotated 180°. Inverted lettering has bee employed as well.

  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