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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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why is this nickel dull on one side?

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  • #1

    why is this nickel dull on one side?

    I know it's hard to see from the pictures, but the front has luster but the back is dull and zero luster. I just got this from an unopened mint set, so it's been sitting in the original packaging for 52 years. Was this a result of the contact with the plastic? But why is just one side affected? I did do a search on plating issues but couldn't really find anything pertaining to nickels, except black beauties which this is not. thanks.
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  • #2
    In my opinion, it's just a hazy sort of toning. Toning happens, and it has its own set of rules. I do not have an accurate reason as to why only on one side. It could have been due to drastic change in temperature exposure, which side was up, and a whole boatload of other reasons. That's all I got.
    Gary Kozera
    Website: https://MintErrors.org
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