U.S. Mint Error Coins for Sale: Proof
U.S. Proof error coins are very rare due to the stringent standards set for proof coins.
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| 1956 Double Die Obverse Proof Jefferson Nickel FS 05 1956 102 0354 | ![]() |
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US $150.00 | 1h 3m |
| ^ 1971 PCGS PR69 DEEP CAMEO DDO SILVER Proof DOUBLE DIE OBV TOP GRADE SILVER | ![]() |
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US $239.98 | 3h 35m |
| 1963 PROOF JEFFERSON NICKEL DDR AND SLIGHTLY ROTATED ANACS PF 66 | ![]() |
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US $85.00 | 4h 2m |
| 1958 WASHINGTON QUARTER ANACS MS63 TYPE B PROOF REVERSE FS 901 | ![]() |
1 Bid | US $20.00 | 12h 43m |
| 1957 P PROOF WASHINGTON QUARTER UNCIRCULATED P | ![]() |
4 Bids | US $8.04 | 13h 20m |
| 1963 DDR DDO PR67CAM Proof Roosevelt Dime Silver ERROR 10 cents | ![]() |
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US $499.99 | 15h 19m |



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