VOCABULARY TERM: MIS-STRUCK

Some of the most dramatic errors are mis-struck. This piece jammed the coining press by deforming in its indexing collar on a Schuler press. Many mint errors listed here are illustrated in this encyclopedia.

Mis-struck. A coin or medal made from a broken, damaged, impaired or misaligned die, from a defective or improperly positioned blank, or an incorrectly struck piece. A wide variety of striking flaws can occur (distinct from planchet flaws, errors in the die, and finishing flaws). Striking flaws include: die trial, misaligned die, double and multiple strikes, collar errors (clashed collar, missing collar, broken collar), brockage, cupping, indented and impressed errors, off center strikes, filled die, rotated die, and incorrect mating of obverse and reverse dies (muling). Correct striking is the responsibility of the pressman and the pressroom foreman, any mis-struck pieces should be caught by inspection (but, obviously, mis-struck pieces slip by inspectors). See ERRORS, INSPECTION.
CLASS 06.9

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