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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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Very Unusual 1992-D LCM DDR (or TRIPLED DIE)?

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  • #1

    Very Unusual 1992-D LCM DDR (or TRIPLED DIE)?

    Hi ALL and a nice Tuesday start!

    Dug this unuisual coin last night. Looks like DOUBLED or TRIPLED REVERSE (combo of DD and MDD)??? Can you please verify and what could have caused the different types of doubling that you may identifty?

    We thank you all again!!!
    NVTEs
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  • #2
    It's just disruption of the copper plating. Rather common.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      one cent looks like machine doubling but the rest is as m. diamond stated
      Jimmy Ehrhart
      previous member of CONECA and C.F.C.C.

      Comment

      • #4
        Thank you both again.

        We're happy because we actually have noted that plating defect ID'ed by Mike as "plating disruption" (which we initially called as "crumpled/rippled plating" and guessed caused by poor plating adhesion, potentially enhanced by die over-temp/pressure???). What's the accurate cause?
        We've also ID'ed mentioned MDDs but can you clarify if caused by pushed die? Double strike? others?

        Thanks again!
        NVTEs

        Comment

        • #5
          I don't know what causes disruption of the copper plating. Machine doubling can be seen on ONE CENT in the last photo group. This is caused by die or press instability and vibration. Machine doubling is not caused by a double strike.
          Mike Diamond. Error coin writer and researcher.

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