U.S. Mint Error Coins for Sale:
Sintered and Copper Wash
Called sintered or copper washed planchet error coins, these errors occur when coin blanks are left for an extended period in the annealing furnace. This give time for the dust of previous coins to settle on the blanks, causing a darker appearance.
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2000 P MASS STATE QUARTER ERROR W NICE SINTERED PLANCHET |  |
0 Bid | US $.99 | 1h 7m |
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AMAZING 1999 P DELAWARE 25C – SINTERED PLANCHET ERROR | |
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US $74.99 | 12h 41m |
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Very Nice 2004 P Florida State Quarter with Sintered Planchet error | |
1 Bid | US $9.95 | 3d 2h 59m |
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1998 D WASHINGTON QUARTER ERROR SINTERED PLANCHET DIE TRAILS STAR IMPRINT OBV | |
0 Bid | US $1.99 | 3d 8h 5m |
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error coin 1999 P Jefferson Nickel COPPER COLOR error Material Sintered | |
0 Bid | US $.50 | 3d 15h 25m |
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2008 President Dollar DARK Sintered Planchet ERROR Coin | |
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US $64.95 | 5d 12h |
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