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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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1952 D Penny Mint Mark Error

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  • Thomas
    • Oct 2024
    • 4

    1952 D Penny Mint Mark Error

    Hello, can you see the mint mark "D" rotated about 45 degrees behind the "D" mint mark in front. Since I am relatively new to error coins - I am seeking others thoughts / opinions on this coin. Would this be considered an RPM? I have never seen a RPM coin in person before so am not confident to state it as such. Research showed all the 1952D penny RPMs observed on-line show the "D" mint in similar orientation to the top mint mark. Any insight or thoughts would be appreciated.
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  • MintErrors
    Minterrors.org
    • Jun 2015
    • 3704

    #2
    In my opinion, this photo looks like it was taken by a cell phone pointing at a TV screen. I cannot zoom in close enough with my tablet to see what's going on due to the photo becoming blurry.

    This coin is heavily circulated and it has a lot of grime around the date and mintmark. It's difficult to assess whether the area you see under the strong mintmark is staining, crud, or something else.

    FYI - A Rpm is considered a variety by seasoned collectors.

    It would be nice to know what and where you researched. This way, people aren't going to repeat the effort.

    The 1952 D cents listed as RPMs are listed on a few sites

    Variety Vista


    NEW Variety LISTINGS LincolnWheat Cents Lincoln Memorial Cents Buffalo Nickels Jefferson Nickels Mercury Dimes Roosevelt Dimes Standing Liberty Quarters WashingtonQuarters State QuartersDC & Territories America the Beautiful Quarters LibertyHalf Dollars FranklinHalf Dollars KennedyHalf Dollars EisenhowerDollars Susan B. Anthony Dollars SacajaweaDollars PresidentialDollars Bullion Commemoratives Mint Medals Coppers &Flying Eagles Indian Cents Half Dime Shield Nickels Liberty




    Die varieties such as doubled dies, Repunched mint marks (RPMs), Over Mint Marks (OMMs), Repunched Dates, Overdates, coin design varieties, as well as regular coins and error coins.




    Three helpful posts:
    How to take better photos with a Cellphone:
    https://board.conecaonline.org/forum...th-a-cellphone

    RPM or DDO question? Help us help YOU:
    https://board.conecaonline.org/forum...lp-us-help-you

    What Forum to post your coin questions:
    https://board.conecaonline.org/forum...t-forum-to-use

    Gary Kozera
    Website: https://MintErrors.org

    Comment

    • Thomas
      • Oct 2024
      • 4

      #3
      Thank you for your insight Gary. Variety Vista was one location I did look while researching. Unfortunately my scope does not take images. Your assessment is correct the photo was taken from a screen shot using a cell phone. I will see if I can borrow a better scope from work as we use them often in my profession. Can you provide suggestions on the best way to remove some of the crud to see if its simply staining and crud? ... toothpick and dish soap ? or is there something special I should use to clean off the surface to prevent damaging the surface. Yes, the coin is average circulated for its age. Thank yo much, Respectfully, Thomas

      Comment

      • MintErrors
        Minterrors.org
        • Jun 2015
        • 3704

        #4
        Originally posted by Thomas View Post
        Thank you for your insight Gary. Variety Vista was one location I did look while researching. Unfortunately my scope does not take images. Your assessment is correct the photo was taken from a screen shot using a cell phone. I will see if I can borrow a better scope from work as we use them often in my profession. Can you provide suggestions on the best way to remove some of the crud to see if its simply staining and crud? ... toothpick and dish soap ? or is there something special I should use to clean off the surface to prevent damaging the surface. Yes, the coin is average circulated for its age. Thank yo much, Respectfully, Thomas


        In my opinion, I would soak it in tap water overnight and them pat dry the coin. after the coin is dry I also like to use an extremely soft cloth like what they use to clean glasses and very lightly press that fabric down and slightly twist the cloth to see if anything comes out. It can be hard to get crud out in an area thats in between letters, numbers and other devices.

        I don't know if there are abrasives in dish soap that will affect the coin. It can be pretty easy to remove portions of the patina on the coin if one is not extremely careful.

        Lighting is a number one pain when taking photos. Since you have the coin in hand, see if you can see if any of the area in question is risen above the flat field of the coin. Photos 90 degrees from normal can provide different views. We can then flip the coin to normal can assess the coin.

        Lastly, know that some of the mint mark punches they used back in the day could dent the flat field of the coin when they added the mint mark to the coin. This can give the illusion that something else is there.



        Three helpful posts:
        How to take better photos with a Cellphone:
        https://board.conecaonline.org/forum...th-a-cellphone

        RPM or DDO question? Help us help YOU:
        https://board.conecaonline.org/forum...lp-us-help-you

        What Forum to post your coin questions:
        https://board.conecaonline.org/forum...t-forum-to-use

        Gary Kozera
        Website: https://MintErrors.org

        Comment

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