proof coins
Mirror-finish currency pieces
Proof coins are specially minted coins with mirror-like surfaces and sharp detail, produced for collectors rather than circulation.
The dies are polished and struck multiple times under high pressure, creating a lustrous field that contrasts with frosted design elements.
The mint releases proof coins in collector sets each year.
Proof refers to the minting process, not the metal content or denomination.
- collector's itemObject valued for rarity
- limited editionSmall intentional production run
- mintageCoin manufacturing process
- frostingSweet cake covering
- uncirculatedNever entered commerce
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