proof coin
noun
: a coin not intended for circulation but struck from a new, highly-polished die on a polished planchet and sometimes in a metal different from a coin of identical denomination struck for circulation
As one of the world's largest proof coins, it contains an enormous four full ounces of pure silver!—
The Numismatist, April 1988
The Numismatist, April 1988Dictionary Entries Near proof coin
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“Proof coin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/proof%20coin. Accessed 28 Nov. 2024.
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