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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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1958-D Washington Quarter RPM or Die Wear or MD?

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  • flyank
    • Jun 2014
    • 65
    #1

    1958-D Washington Quarter RPM or Die Wear or MD?

    My guess is machine doubling of the D mintmark with some die wear included. Has at least 2 extra layers to the east of the D. Looking for help with my learning curve
    Attached Files
    Bob
    CONECA Member
    Tags: None
  • MintErrors
    Minterrors.org
    • Jun 2015
    • 3554
    #2
    Where I start is eliminating the potential for machine doubling. I look at the mint mark and see something that is on the "east side" of the "D" mint mark. I look on other devices and see if there is any similar damage on them on the east side as well.

    I look at the serifs of the mint mark, sometimes in the right lighting you might be able to see split serifs, even if worn. while looking at the coin, slowly spin the coin around and look at it at different angles.

    I think if you turn the coin upside down and have the light shine on the affected side, it might show more. if the light doesn't help in that regard, try making a small stand of white paper that can reflect light to enhance the area.

    With circulated coins, its always tough the determine the path they have traveled. to me it looks like Machine Doubling. I say that because it looks like it is reduced in size. When i look at possible RPM's I try to envision the same size mint marks and how far east or west other parts of the upper/ lower mint mark would have to be. That "tear" on the east side of the mintmark is probably a hint at damage. There also seems to be some of it between the bottom near the ER in QUARTER. The eastern curve of the mintmark doesn't look natural at the top. IF it was all like the lower portion it might look more natural.

    Its late, I hope this makes some sense. Short of trying to match the mint mark position up to a possible candidate at variety vista or other quarter site. If I can help answer any questions feel free to ask.
    Gary Kozera
    Website: https://MintErrors.org

    Comment

    • flyank
      • Jun 2014
      • 65
      #3
      Thank you very much Gary...your deep explanation certainly helps!...and is much appreciated. I agree, in my early learning it seems very difficult to "judge" circulated coins due to the road they have traveled, unless the error is of the obvious nature. Thanks again for your kind help!
      Bob
      Bob
      CONECA Member

      Comment

      • koinpro
        CONECA Public Relations
        • Nov 2007
        • 467
        #4
        Looks like Strike Doubling (Machine Dbl) to me.
        Ken Potter
        CONECA Public Relations
        Member of: CONECA-HLM, ANA-LM, MSNS-HLM, NWDCC, CSNS, NLG, IASAC, Fly-In
        Visit my website: http://koinpro.tripod.com
        Visit CONECA's Website
        Unless otherwise noted, images are by Ken Potter and copyright Ken Potter 2015.

        CONECA Notice: Any individual is encouraged to submit articles, opinions, or any other material beneficial to the numismatic community. Contributions should not be libelous or slanderous; ethics and good taste shall be adhered to. Opinions expressed herein do not necessarily represent the official CONECA policy or those of its officers. The act of submitting material shall constitute an expressed warranty by the contributor that the material is original; if not, source and permission must be provided.

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