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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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Help with this proof quarter...double strike or MDD

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  • #1

    Help with this proof quarter...double strike or MDD

    This is from a 1963 Proof Washington Quarter...does it look like a double strike or just MDD?

    Thank You,
    Larry Nienaber
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  • #2
    Since all proofs are struck more than once, the question should be, was there movement of the hammer die between strikes? I believe there was, and I also think there is machine doubling.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      Yes it looks like machine doubling flat shelf like surfaces.


      Coinartist

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      • #4
        Imagine that, damage on a proof coin. You'd think it would have been pulled.
        Most fools think they are only ignorant.
        -- Benjamin Franklin

        CONECA Member
        N-4556

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        • #5
          Originally posted by rockdude View Post
          Imagine that, damage on a proof coin. You'd think it would have been pulled.
          The imperfection is microscopic and therefore not one that would easily be detected.
          Mike Diamond. Error coin writer and researcher.

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          • #6
            Most of D/D on proof quarter are on the rev.but you may have one on the obv there always a 1st one?
            No one right 100% of timesI maybe wrong and will I say, sorry I was wrong

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            • #7
              I agree with Mike yes machine doubling on a proof i have many like that with extreme machine doubling.

              That's something the mint will not pull ,because they can't see it so they get placed in the proof sets anyway

              JIMcoolcoinz dealership

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              • #8
                Nice find jello wow a good one congrates my friend

                Brad

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