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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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1964 DDD New RPM or MD?

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  • #1

    1964 DDD New RPM or MD?

    A guy at work brought in this set that was given to him a very long time ago by a relative.

    Can you tell from these photos if this is a RPM or MD?

    Thanks ~ Darryl



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  • #2
    It's very hard to tell from the lighting Darryl. use an index card and wrap around a reader's light from a book store. Then use a finger "over the card" from a light weight glove,"Plastic" and see if it works better for you. Eric

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    • #3
      how is this?
      Attached Files

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      • #4
        are these any better?
        Attached Files

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        • #5
          I tried magnifying your pictures. Unfortunately, they began to pixalte before I could get a clear definition of what is going on.

          There is definitely some isolated machine doubling on the mint mark. However, I think that I do see some split serifs on the top and the bottom of the mint mark.

          My recommendation is to send the coin into an attributer for an in hand examination.

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

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          • #6
            Originally posted by wavysteps View Post
            I tried magnifying your pictures. Unfortunately, they began to pixalte before I could get a clear definition of what is going on.

            There is definitely some isolated machine doubling on the mint mark. However, I think that I do see some split serifs on the top and the bottom of the mint mark.

            My recommendation is to send the coin into an attributer for an in hand examination.

            BJ Neff
            Thank you! I will try to get some shots from under a microscope tomorrow. Will post them if I do.

            Best Regards ~ Darryl

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            • #7
              Here are some shots from the microscope. These you can zoom in on.





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              • #8
                I am more inclined to believe this to be a case of isolated machine doubling. Then again, RPMs are not my top field and I would seek the advise of others. Either John Wexler or James Wiles may confirm my attribution or request to see the coin in person.

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

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                • #9
                  It sure looks like machine tripling, but best follow BJ's advice and email the usual crew for RPMs...
                  Jason Cuvelier

                  CONECA
                  Lead attributer

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                  • #10
                    The last pic of the group has very nice flat shelf like appearence. It looks like Machine Doubling to me. Not an RPM...

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                    • #11
                      This is a great example of triple strike Md

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                      • #12
                        Die striations might give the best clue !

                        The die striations of the of the outermost impression on the upright of the "D" are 90 degrees perpendicular to the surface striations of the surrounding field.
                        Otherwise if it was due to the surrounding field making a shelf like impression then the striations would run in the same direction.
                        This can represent typical ejection striations that mimic doubling, however the elements of doubling do not show a typical pushed up look.
                        So I am inclined towards die doubling, but a microscope is needed here.

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