Tripled die or machine doubling?

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  • mikediamond
    Paid Member, Error Expert

    • Jan 2008
    • 1104

    #1

    Tripled die or machine doubling?

    Is this 1957-D cent a tripled die or a case of machine doubling? If the former, is it listed?



    I tried going to coppercoins.com but the die variety files are not accessible at the moment.
  • Roller
    Member
    • Feb 2010
    • 6975

    #2
    It is not MD since, I believe, MD would be in proximity of the device effected. This one is way too far spread IMHO to be MD. If it were hub doubling, with this prominence of the anom., I would expect evidence of it on other devices as well.

    Comment

    • willbrooks
      Die & Design Expert, LCF Glossary Author

      • Jan 2012
      • 9477

      #3
      Looks like the wrong size and shape for a doubled eye. There appear to be incuse impressions below the pushed-up extra "eyelids" which leads me to suggest post strike damage as a culprit. However, the one to the northeast looks more like a die chip or gouge. All smoothed over by circulation wear.
      All opinions expressed are not necessarily shared by willbrooks or his affiliates. Taking them may result in serious side effects. Results may vary. Offer not valid in New Jersey.

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      • BadThad
        Member
        • Jan 2009
        • 3011

        #4
        I agree with Will, looks like PMD.
        VERDI-CARE™ ALL METAL CONSERVATION FLUID

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        • mustbebob
          Lincoln Cent Variety Expert
          • Jul 2008
          • 12758

          #5
          Appears to be worn damage to me as well. As far as the coppercoins files, I have no issues with listing the varieties. Are you still having issues with that?
          Bob Piazza
          Former Lincoln Cent Attributer Coppercoins.com

          Comment

          • mikediamond
            Paid Member, Error Expert

            • Jan 2008
            • 1104

            #6
            The distance between the normal eye and the "eye" located to the northeast is not inconsistent with extreme machine doubling. I've seen even greater degrees of separation in undoubted cases of machine doubling. I would think damage is a more likely prospect. But the final word will hinge on a close examination under a microscope. I did purchase the coin on the off chance it represented something interesting. Regardless of what it turns out to be, it will be useful in a future article on the various causes of double eyes in Lincoln cents.

            The die variety search feature is now working on coppercoins and there is nothing listed that resembles the auction coin. There are several "double eye" DDOs, but the extra eyelid is located in front of the normal eye, in an area of very low relief. The auction coin shows the "extra eyes" in an area of high relief, which is consistent either with machine doubling or damage.

            Thanks for everyone's input.

            Comment

            • mikediamond
              Paid Member, Error Expert

              • Jan 2008
              • 1104

              #7
              A close inspection confirms that this is post-strike damage.

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              • jfines69
                Member
                • Jun 2010
                • 28848

                #8
                Thanks for the update Mike!!!
                Jim
                (A.K.A. Elmer Fudd) Be verwy verwy quiet... I'm hunting coins!!! Good Hunting!!!

                Comment

                • BadThad
                  Member
                  • Jan 2009
                  • 3011

                  #9
                  Originally posted by mikediamond
                  A close inspection confirms that this is post-strike damage.
                  Thanks for the update Mike!
                  VERDI-CARE™ ALL METAL CONSERVATION FLUID

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