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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

If you're not a member and would like to join see our Membership Application

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

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  • RabidCoinMan
    • Dec 2025
    • 6
    #1

    New member

    Hello, My name is Steven. I have been collecting coins all my life but I have not joined a club before. I am interested in learning about the Numismatic side of collecting. I am definitely a novice. I live in Idaho. I enjoy finding cool coins. Thanks
    Tags: None
  • MintErrors
    Minterrors.org
    • Jun 2015
    • 4032
    #2
    Welcome aboard.
    There are a handful of folks that actively help new members.
    Feel free to post any questions you may have.
    If they are about a specific coin or topic, its rather easy to find the correct forum.
    In my signature block are some helpful posts to get you going.

    Happy Hunting
    My signature block :

    Three helpful posts:
    How to take better photos with a Cellphone:
    https://board.conecaonline.org/forum...th-a-cellphone

    RPM or DDO question? Help us help YOU:
    https://board.conecaonline.org/forum...lp-us-help-you

    What Forum to post your coin questions:
    https://board.conecaonline.org/forum...t-forum-to-use

    Gary Kozera
    Website: https://MintErrors.org

    Comment

    • RabidCoinMan
      • Dec 2025
      • 6
      #3
      Thank you, I will check it out.

      Comment

      • Mhennessey11
        • Jan 2026
        • 14
        #4
        Hello...My name is Mike and I have been collecting coins and baseball cards for over 60 years...I heard about CONECA and decided to become a paying member...My member number is N-8241...I look forward to a great relationship with the origination and will do my best to contribute in all ways...

        I currently have a question about a current search I made...The material consists of multiple examples from a sealed $1,000 Federal Reserve bag of 1999-P quarters. While sorting approximately 4,000 coins, I identified a recurring die gouge adjacent to the mint mark area on the obverse, appearing consistently in the same location and progressing through multiple die states.

        I have documented the progression as:
        • Early Die State (EDS)
        • Middle Die State (MDS)
        • Late Die State (LDS-1)
        • Late Die State (LDS-2)

        In addition, I found several associated struck-through grease examples from the same source, showing weakening and loss of detail around “UNITED STATES OF AMERICA” and the central obverse field.

        All coins are uncleaned and remain raw.

        I am seeking confirmation of classification as a legitimate mint error (die gouge / die damage with progressive die states, and struck-through grease), and guidance on whether this material is suitable for further documentation or attribution.

        With all of that said, I am not sure how to proceed...I have images of all sample coins...What would be my next step....

        Thank you for the opportunity to belong and for all your help...Mike

        Comment

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