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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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1999 Jefferson Nickel P

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  • CrzyWytCrakr
    • Jul 2022
    • 154
    #1

    1999 Jefferson Nickel P

    Now I have never been successful with finding anything that you guys considered Doubled. This time I got it...The "P" is over either another "P" or a "D". Please excuse the pics they are ok but the microscope I have is trash....Almost beat it with a hammer and set it on fire. But I refrained from doing so...
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  • MintErrors
    Minterrors.org
    • Jun 2015
    • 3678
    #2
    In the mid 1990s they added the mintmark to the master hub which makes all the working dies which in turn, make all the coins. That means the mint workers were no longer creating RPMs or OMMs. So, what I am trying to say is two fold.

    Since the mintmark was added to the design, for that to be Doubled, other devices could be Doubled as well.

    Or, it is simply machine, strike, ejection or mechanical damage.

    Variety vista does not have anything for that year. Heck, the decade has pretty slim pickings as well.

    http://varietyvista.com/04b%20JN%20D...20Listings.htm

    Brians varieties does not have anything either....

    https://www2.briansvarietycoins.com/listings/cat/55

    Odds are its simply machine, strike, ejection or mechanical damage.
    the mint mark is kind of thinner and shelf like, in my opinion...
    Last edited by MintErrors; 12-12-2022, 10:50 PM.

    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

    • CrzyWytCrakr
      • Jul 2022
      • 154
      #3
      I have 4 of that are the same 2 of them is not as bad but this one and the other one are about the same. I wish I could get a better pic. The 1999 in them also show the same things...also correct me if I'm wrong but I read somewhere that "Doubling" is a slip of the die caused by a mechanical problem ...ie...miss alignment or something to that nature. I am asking if what I read is correct or not. I do still I thank you for taking the time to check out my posts and I'm curious to know/understand better so I don't post anymore junk coins!!
      Last edited by CrzyWytCrakr; 12-13-2022, 01:06 AM.

      Comment

      • mustbebob
        Moderator
        • Aug 2007
        • 3050
        #4
        Doubling" is a slip of the die caused by a mechanical problem
        Mechanical doubling or MD does occur as the result of a loose die, loose collar, die bounce or anything else mechanical. The type of doubling we look for here is hub doubling, or an error made while making the dies.

        With that being said, Single Squeeze hub doubling can be made when they are applying the pressure of the master hub to the blank die face. It has been said that while the pressure is being applied, the master slips a little, or the pressure is released and then re-set. The die face is conical at this point of the die making process.

        Here is a great link that explains the process:

        Wexler's Coins and Die Varieties
        http://www.doubleddie.com/58201.html
        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.
        Bob Piazza
        Lincoln Cent Attributer

        Comment

        • CrzyWytCrakr
          • Jul 2022
          • 154
          #5
          Ahhh....I understand now. I am a Maintenance Mechanic by trade and work on million dollar machines and I was trying to wrap my head around that. Thank you for helping me understand that better. Well let me ask you this then, if you don't mind that is and I will leave you alone.....maybe. What, in your experience, Do you think would've cause the die to create the bubble or mound that the "P" is stamped on? I guess that's where I was not understanding before. I do get the Doubling effect now. But this is what has me scratching my head and why it's not really influencing the value of the coin or any coin it happens to. Again thank you for all your help.

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