定義

• Sink.  To prepare a die from a hub, as a final step of hubbing. A peculiarity of the English language exists for this term: "raise" and "sink" in the connotation of hubbing both mean the same!  This sink is intended and desirable. If a die sinks (after long use and wear) it is deteriorating; this is unintended and undesirable.  See sunken die.

  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

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