Définition

• Billon.  A composition with more base metal alloy than precious metal content. Billon coins are either low value denomination or extensively debased. In cataloging, billon
  is usually spelled out (to distinguish from bronze or brass), however in Italian it is abbreviated M (for mistura).

  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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