Definizione

• Solid.  Not pierced, not hollow, not plated, not a shell and of one homogeneous entire mass. Solid medals are in contrast to those that are pierced (see openwork), or those that are hollow (see cast, electroform), or those that are plated (see electroplated), or those that are thin (see shell). Solid medals are more common, of course, than those listed above and are often the base medal upon which such piercing, plating or other operations are applied.
  Solid silver.  Also the word solid applies indistinctly to the fineness of precious metals. For example, solid silver means the composition of an item in silver – and only
  silver – throughout (with only minute alloy for hardness permitted). Solid silver is not a synonym for fine silver – though nearly so. Fine silver means the fineness is known
  and expressed on the item (by hallmark, letters or figures, often as required by law, as:  .999); solid silver means the fineness is not known but the homogeneous mass is silver with only minute alloy.
  Solid also describes filled letters and figures.  See filled 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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