Definizione

• Chalk.  A white calcareous substance used for die engraving prior to transferring a design, or to coat the face of a die with chalk upon which the design is drawn or scribed. Hand die engravers use precipitated chald. A similar technique, called chalk engraving, is used in stereotyping to produce a relief form.

  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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