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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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1957d cent doubling

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  • 1957d cent doubling

    I am trying to send a pict of my 1957d with doubling, I cant find another like it anywhere. If anyone knows of a similer error please let me know. Ive been a collector for ten years and I cant find another like it. Im sure its not a ddo but its kicking just the same. Ive really learned a lot here and from related sites. Thanks for all the great info. If Pictures dont show well, please zap me and let me know, sorry Im new at this.
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  • #2
    It's machine doubling. A very nice example that's worth a small premium.
    Mike Diamond. Error coin writer and researcher.

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