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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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Just in case. US Mint proof coin FROST OVER, polishing, VS. DDD

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  • #1

    Just in case. US Mint proof coin FROST OVER, polishing, VS. DDD

    These are from a 1964 proof cent.

    These images relate to frost over which was polished away by the mint, being mistaken for Die Deterioration Doubling.

    The removal on U and S is on the left, while DDD is on the right. The removal on G is on top of the lower arm, while the DDD is under G.

    IMG_5814.jpeg IMG_5815.jpeg IMG_5816.jpeg

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  • #2
    Originally posted by signofthedimes View Post
    These are from a 1964 proof cent.

    These images relate to frost over which was polished away by the mint, being mistaken for Die Deterioration Doubling.

    The removal on U and S is on the left, while DDD is on the right. The removal on G is on top of the lower arm, while the DDD is under G.

    IMG_5814.jpeg IMG_5815.jpeg IMG_5816.jpeg
    For anyone that's normal, you have a car and over time, it has wear and tear.

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