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CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers—just to name a few. In addition to its website, CONECA publishes an educational journal, The Errorscope, which is printed and mailed to members bimonthly. CONECA offers a lending library, examination, listing and attribution services; it holds annual meetings at major conventions (referred to as Errorama) around the country.

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Mint error or post mint damage?

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  • #1

    Mint error or post mint damage?

    This is likely a 1940 S Mercury dime. The zero and part of the 4 are missing on the obverse and there's something unusual about the rim of the coin near the affected area. The reverse of the coin has similar problems in the same position. The rest of the coin is not too worn out and looks quite normal... I have seen coins struck through grease that had obscured numbers or letters but that was only on one side of the coin. Your thoughts & comments appreciated.
    1940 S date missing digits front.png 1940 S back letters obscured.png
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    • 1 like
  • #2
    Would this fall into the Misaligned die error category?

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    • #3
      Can someone respond with thoughts on this being a possible mint error? A thin planchet or mis aligned die? To me it looks like one area of the coin did not strike up fully Vs the possibility of unusual equal wear in the same area on both sides of the coin. Thanks

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