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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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Another triple segmented Lincoln arm. 1960D LD cent

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  • signofthedimes
    • Jan 2023
    • 2168

    Another triple segmented Lincoln arm. 1960D LD cent

    Maybe....

    A remaining segmented arm was left in the field, below the triple segmented doubling of Lincoln's chair itself.

    The second hubbing can be matched unexpectedly with a hub rendering in which quality checks were randomly done to inspect the coins visuals. They can include modifications that only people involved with US Mint processes were able to look at.


    Screenshot_20260116-082931_Photos~3.jpg Screenshot_20260116-082843_Photos~3.jpg
    Last edited by signofthedimes; 01-16-2026, 10:09 AM.
  • signofthedimes
    • Jan 2023
    • 2168

    #2
    Some would call it a strike die created just for modification gauging. Differing sizes of chair bottoms for choosing. Dies one over another to pick the one they wanted

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