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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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1980 DOUBLED DIE CENT QUESTION?

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  • coins-it-is
    • Aug 2007
    • 18

    1980 DOUBLED DIE CENT QUESTION?

    Hey everyone. I came across this Lincoln cent with nice notching on the date. Cany anyone advise if this is a new listing or what? Thanks in advance! Andy (The link to the coin pics is


  • diamond
    • Jul 2007
    • 2040

    #2
    I see no indication of doubling. You certainly wouldn't get notching along the inner curve of the "0". Notching develops on sharp corners, not smooth curves.
    Mike Diamond. Error coin writer and researcher.

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    • coins-it-is
      • Aug 2007
      • 18

      #3
      1980 DDO Question

      Thanks as always for your help. At the tip of the 9 this is not a minor ddo? Just trying to figure this stuff out. Thanks again! Andy

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      • diamond
        • Jul 2007
        • 2040

        #4
        There may be a slight furrow there, but I see no notching. I can't be sure it's a furrow; it could just as easily be a trick of the light. If it is a furrow, it would most likely be a true doubled die, but one that is too trivial to list.
        Mike Diamond. Error coin writer and researcher.

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