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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.

CONECA was formed through a merger of CONE and NECA in early 1983. To learn more about the fascinating HISTORY OF THE ERROR HOBBY and THE HISTORY OF CONECA, we encourage you to visit us our main site Here

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Hi I'm ted67 and I will be lost in my how to get it done.

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  • #1

    Hi I'm ted67 and I will be lost in my how to get it done.

    1920 penny weight is 2.7gr not 3.11 gr
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  • #2
    Hi Ted and welcome to the forum. This coin has experience significant post mint damage as evident by a countless number of scratches, digs and scuff marks. In my opinion, this extensive post mint damage has had an effect of reducing the weight of the coin from missing metal and normal wear prior to the damage.
    James Zimmerman
    Coneca N-911
    CONECA PA State Rep/Treasurer

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