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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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Washington Dollar Error

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  • #1

    Washington Dollar Error

    Please check out this dollar coin, I think it is a double strike. Those parts doubled were in the releaf area of the rim. The extra portion starts at 2 and ends at 7. See pictures.

    Tuebits
    Attached Files
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  • #2
    This is a case of "rim-restricted design duplication". It's generated by a single strike and most likely represents a form of machine doubling. It's most common in Washington dollars but crops up in later issues at least up to Madison. The same area is always affected. In severe cases the extra design elements can take up the inner half of the design rim. Which President appears on your coin?
    Mike Diamond. Error coin writer and researcher.

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    • #3
      Washington, 2007 Dollar Coin

      Tuebits

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      • #4
        No surprise, there. Enjoy your find. It's certainly worth keeping, although its market value is modest.
        Mike Diamond. Error coin writer and researcher.

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        • #5
          John Tyler "rim-restricted design duplication" find

          The rim on this John Tyler Dollar starts at the top of the hand and continues to the second fold of the robe after the book traveling clockwise.

          Tuebits
          Attached Files

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          • #6
            It is hard to tell what you have from your picture. It could be a die clash, or gouge or post strike damage.

            BJ Neff
            Member of: ANA, CCC, CONECA, Fly-in-club, FUN, NLG & T.E.V.E.C.

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            • #7
              Your right poor photo. Maybe theses will help.
              Attached Files

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              • #8
                Douled Rim Restriction Duplication error

                Hi again,

                Found this Washington $ with what I thinnk is a Douled Rim Restriction Duplication error. The first starts at the tablet and the second at the wrist. Please see photos.
                Attached Files

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                • #9
                  Based on the third photo, I would agree that this is a minor case of rim-restricted design duplication. Recent evidence shows that this form of RRDD is a type of machine doubing.
                  Mike Diamond. Error coin writer and researcher.

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