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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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New member with coin question

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  • New member with coin question

    Hello everyone.

    I found a 2008 D Lincoln Memorial with a lot of little bumps on the obverse and the reverse, is this important or just the run-of-the mill sort of thing?
    I tried to take pictures. Hope you can see the bumps.


    Thanks for any help.
    Attached Files
    My mind is made up, don't confuse me with the facts!

  • #2
    You've got a case of blistered plating. Due to dirt on the planchet, the copper plating failed to adhere properly. During the strike, heat and subsequent gas expansion pushed up the plating. It's a common defect and confers no additional value on the coin.
    Mike Diamond. Error coin writer and researcher.


    • #3
      its really a common defect? would have fooled me. i have never seen a coin period that looked like that.looks like it has acme. lol


      • #4
        Actually, it's much more common in the early 1980's, but it occurs in all years.
        Mike Diamond. Error coin writer and researcher.