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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 D MM

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  • 1980 D MM

    Hello,
    I can't find this on any coin variety websites. Once again not sure if RPM. Any input would be greatly appreciated.

    Thanks again in advance. WIN_20240321_22_39_30_Pro.jpg

  • #2
    In my opinion, I am not finding any matches for this one. It is slim pickings for the 1980 from Denver. It may just be some localized machine doubling. It is awful flat looking. My gut says it's probably not an RPM. But, I am human and I do occasionally make mistakes.
    Gary Kozera
    Website: https://MintErrors.org

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