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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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  • CrzyWytCrakr
    • Jul 2022
    • 154
    #1

    Been a while

    Hey everyone it's been a while since I've posted. Anyway here is a 1999 Lincoln Penny no mint. This thing felt funny when I first picked it up. Like fake funny. When I weighed it it weighed in at 3.11g I weighed another same year and it weighed 2.5. it looks funny too. But I will let the you experts decide.
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  • mustbebob
    Moderator
    • Aug 2007
    • 3050
    #2
    If it is 3.11g, It is definitely over weight for the year. If your weight is correct, then it needs to be sent to an examiner. Once verified, it would be a good coin to send in to a TPG for authentication and maybe being struck on an overweight or foreign planchet.
    Bob Piazza
    Lincoln Cent Attributer

    Comment

    • MintErrors
      Minterrors.org
      • Jun 2015
      • 3597
      #3
      3.11 is the weight of a copper cent. One thing that can be tried is the ring test. I recommend using a good known copper cent and finding a location like a tile floor, marble countertop or other location. Take that extra copper cent and practice dropping it on the rim and listen for a ringing noise as it hits. Once you have perfected that method, try the coin in question.

      I am not at my pc, so I cannot provide a link to a 70 or so page pdf file which has a listing of foreign coins made at US Mints. If I have some time tomorrow, I will locate it and add it here. I do not remember if it goes into the 1990s or not.
      Gary Kozera
      Website: https://MintErrors.org

      Comment

      • CrzyWytCrakr
        • Jul 2022
        • 154
        #4
        Awesome I will do that! Thank you for the info it is appreciated!

        Comment

        • CrzyWytCrakr
          • Jul 2022
          • 154
          #5
          Hey MustbeBob! Yeah they are correct I calibrated them before I weighted coins and another coin of the same year. I will look at the requirements for doing so and get it sent off. I appreciate yalls help. Thank you guys!

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