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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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1966 Roosevelt dime

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  • #1

    1966 Roosevelt dime

    Does anyone have an idea how this could have happened, I found a 1966 Roosevelt dime this afternoon that was missing the nickel plateing. The copper is off color, the diameter is the same as an ordinary dime, the weight is2.24 grams.??
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  • #2
    The weight you cite is falls within the expected range of variation for dimes. Your dime is either discolored or was struck on an improperly annealed planchet. The latter can turn a planchet a copper color as copper atoms migrate to the surface.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      Thanks MIke, would you be interested in taking a look at this coin in hand?

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      • #4
        I think it would be worth a closer look. You can contact me directly at mdia1@aol.com. -- Mike
        Mike Diamond. Error coin writer and researcher.

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        • #5
          brown dime

          I have a similar dime, see pic. Both sides are the same color. Has the coin been altered?
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