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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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Mint ERROR

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  • jcuve
    replied
    Some examples:

    Clips (an incomplete planchet)

    clips01 copy2.jpg
    1985D-CLIP-2PLATED2.jpg

    clipsheet Elliptical copy.jpg clipsheet Ragged copy.jpg

    Leave a comment:

  • jcuve
    started a topic Mint ERROR

    Mint ERROR

    What is a Mint Error?

    Mint errors cover a wide swath of various mishaps and calamities that occur during some part of the minting process and leaves evidence on a stuck coin.

    Errors are diagnosed by an examiner (and sometimes by an attributer). Errors are not typically cataloged, unless they are die related such as CUDs and Clashes.

    Error coins are defined thru a working knowledge of the minting process - error coins ARE NOT errors on the basis that one cannot explain how a coin was damaged (Post Mint Damage).

    A variety is an error and there really is no fully excepted definition that separates them. Varieties are typically related to a die mishap that happened pre installation (like an RPM or doubled die).

    Please do your best and post ERROR COINS in this section.

    What constitutes an error? Here is a very much simplified list:

    Design modifications
    Design mistakes
    Installation errors
    Various die errors
    Collar errors
    Die modifications
    Clashed dies
    Die breaks
    • CUDs
    • Die chips (often minor)
    • Die cracks
    Planchette errors
    • Clips
    • Thin or thick planchettes
    • Annealing
    • Plating
    • Clad errors
    Off metal errors
    Striking errors
    • Unstruck
    • MADs
    • Collar errors
    • Weak strikes
    • Machine doubling (VERY STRONG)
    • Off center
    • Broadstrikes
    • Multi struck
    • Indents
    • Die caps
    • Struck thrus
    Tags: None
    • Stuck
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