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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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Rim Error

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  • #1

    Rim Error

    I know this is probably a quite common error, but here is a Washington Quarter with a rim error. I think it is a partial collar error, but I am not sure. Thanks.
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  • #2
    I see nothing out of the ordinary in your photo. Please describe the feature that has intrigued you. A partial collar error would be best seen on the edge, and you have not provided a photograph of the edge.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      I'm sorry, I thought the yellow arrows point out what appears to be a double rim. If you look at the 3 oclock part of the rim there is only one rim plateau, whereas the 9 oclock part of the rim has a double plateau with a groove in between.

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      • #4
        Based on your description, this would be a case of die deterioration. This can occasionally produce a low ridge internal and parallel to the design rim.
        Mike Diamond. Error coin writer and researcher.

        Comment

        • #5
          Originally posted by diamond View Post
          Based on your description, this would be a case of die deterioration. This can occasionally produce a low ridge internal and parallel to the design rim.
          I am curious, are the photos that I post here unclear, pixilated, out of focus, completely garbled? I spend a fair amount of time trying to make quality photos with my digital camera and my digital microscope. When I view these photos after uploading they seem fairly clear to me. I guess it is possible that what I am seeing after uploading is not what can be seen by others. Is this the case?

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          • #6
            Your photos are fine for showing gross features, but not the microscopic details you wish to convey.
            Mike Diamond. Error coin writer and researcher.

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