A piece or part of a crown; the central or uppermost part of a crown; also, a coin with a crown design.
From 'crown' + 'piece.' In numismatics, crown pieces were actual coins; in other contexts, it refers to component parts of a crown's structure.
Crown coins (pieces) are now worth far more as collectibles than their face value—showing how objects made for one purpose become treasured by completely different people centuries later!
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