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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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Cud? on 2007-P Madison Presidential Dollar

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  • Cud? on 2007-P Madison Presidential Dollar

    Hi--I don't know if this is called a "Cud"--on reverse, above the C in AMERICA, extra blob of metal to the lower rim. The S in STATES is filled, in the open area below the top, ca
    Thanks
    Calvin
    Attached Files

  • #2
    It's a die chip.
    Mike Diamond. Error coin writer and researcher.

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