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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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We thank everybody who has helped make CONECA the great success that it is today!

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New member from New Jersey — hello!

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  • Parth
    • Apr 2026
    • 23
    #1

    New member from New Jersey — hello!

    Hi Everyone,

    Just joined CONECA and wanted to introduce myself. I'm Matt, based in northern New Jersey. I've been coin roll hunting for a few months now across halves down to pennies and I'm working on building my attribution skills for doubled dies, RPMs, die cracks, chips, and cuds.

    My current setup is a Nikon SMZ660 stereo microscope, a Tomlov DM9 Max digital scope for documentation, and a Carson Pro Head Visor LED magnifier for quick looks. I've been leaning heavily on Wexler, Variety Vista, and the CONECA Master List for reference while I learn.

    I've accumulated a decent stash of candidate error coins but I'm still working on the fundamentals — particularly telling subtle hub doubling apart from machine doubling and die deterioration. I'd rather be slow and conservative than call something a DDR that isn't one.

    Looking forward to learning from everyone here. I'll probably have a 2015-P Blue Ridge Parkway quarter up in the attributions forum before long for a pre-screen.
    Tags: None
  • eaxtellcoin
    RPM Dealer Specialist
    • Feb 2008
    • 1073
    #2
    Hello Matt and welcome to the forum.
    Please do post photo's as close as you can get, in focus, to the varieties part of the forum if Double Die or RPM first. Most of the time, someone can answer your questions there first. We have folks that come in and jump strait to "" attributions"" bypassing other's knowledge. It takes alot of time to enlarge and look close at folks photo's, then folks wounder why it takes so long to get an answer. Everone should post to the forums first, before jumping to attributions. Most of the time, they recieve a quicker answer. Thanks again for joining.
    Eric

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    • Parth
      • Apr 2026
      • 23
      #3
      Ok, just made my first post to the General Forum regarding a Doubled Die. I'm relatively new to CRH, but already have a killer setup - Leica A60 scope, Zeiss Stemi 2000C trinoc for documentation which is in the process of being configured, B&L SZ4 and TOMLOV DM9MAX. When I find something I love I tend to go all out. I've been struggling in the Doubled Die department though and hoping this is my first one. Looking forward to learning from you.

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