定義

• Suction Mark.  A small area of ghosting – the high relief design of one side appearing as an indistinct negative area on the opposite side.  See suction.

  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