定義

• Horizon.  The line where the sky meets the earth. The horizon line is infrequently shown on coins and medals of scenes; it is also implicit for linear perspective. The horizon is parallel to the base line.  See perspective.

  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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