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Proof Coin
What exactly is a proof coin?
The original meaning of a proof was a coin struck to 'prove' the dies. More
recently it has come to mean a coin struck two or more times with polished dies
on a planchet which also has been polished. Thus a coin struck only once does
not qualify as a proof. The US Mint sells proof coins in sets that come in hard
plastic cases. You may still find a proof coin in circulation, discarded by a
collector or dealer because of some defect. US proof coins are legal tender.
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Joel
D Rettew Rare Coins
23685 Moulton Pkwy B1
Laguna Hills, CA 92653
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