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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.

CONECA was formed through a merger of CONE and NECA in early 1983. To learn more about the fascinating HISTORY OF THE ERROR HOBBY and THE HISTORY OF CONECA, we encourage you to visit us our main site Here

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1972 25c

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  • #1

    1972 25c

    ...is this DDO or DDR or just a “business as usual” thickness...?
    Tags: None
  • #2
    Once again, you need to be specific about what makes you think this is a doubled die. We are not here to review your entire collection. You really do need to take some initiative and research this stuff on your own. Study the process and review the examples in the files. That should be your first action.
    Bob Piazza
    Lincoln Cent Attributer

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    • #3
      This looks normal
      Jason Cuvelier

      CONECA
      Lead attributer

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