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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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State Quarter with Problems

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  • State Quarter with Problems

    I’m posting this for help in determining if the depth reductions in the reeding of this 'Quarter with Problems' might be related to a collar type mishap. If so, then what ever happened to this coin ruined what could have been my first find.
    If this is to much reading just skip to photo’s. Thanks to all for any help with this... Frank

    Background
    I found a pocket change State Quarter and thought it was rare and valuable. With no knowledge of coins I tried to identify / valuate this quarter online. The only photo I found that looked like mine was on EBay. The seller claimed that quarter was missing the reverse clad layer. (Starting bid of +/- $100 with no bidders.)

    Then I emailed photo's of the quarter to a few coin clubs and dealers. I received four replies, all stating the coin was definitely not an Error Coin. I was disappointed but had no problem excepting this because by then I had viewed many coins with a missing clad layer and none looked anything like mine or that EBay coin.

    Later I read a post, referring to an 'EBay coin', that suggested others not follow such an example as that might hinder Error Coin interest. This I felt might well be connected to that EBay coin I viewed online. My thought was... wow!

    Becoming even more interested in coins I continued reading and began to examine this quarter, and other coins, with a Radio Shack loop (5x, 10x, 30x). With better lighting I found a step-down in the quarter’s reeding depth, going toward the reverse, which could be concaved with striations running with the coin edge. I found other visual observations and will post if anyone is interested.
    I also took some crude measurements using a caliber with 1/1000 inch graduations.
    Again thank all for any help with this, Frank
    Attached Files

  • #2
    The reverse face of your coin was mechanically removed, possibly by a milling machine.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      Hadn't thought of milling, but was thinking the reeding grove could be signs of a holding device. Now my thought is whether or not an autopsy is in order. Once again thank you for your time and expertise... Frank

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