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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.

CONECA was formed through a merger of CONE and NECA in early 1983. To learn more about the fascinating HISTORY OF THE ERROR HOBBY and THE HISTORY OF CONECA, we encourage you to visit us our main site Here

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Numismatic study.

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  • Numismatic study.

    If anyone knows a 1973S or 1973 cent reverse, they know the first Lincoln Memorial pillar shows a mysterious diagonal fluting running from the upper left, to the middle. That became a staple of the die, an errant image which became doubled on every die after when a portion was removed in the second Lincoln Memorial bay.

    A second Lincoln Memorial hubbing was soon newly installed in place where the image needed its focused restrengthening, cementing the diagonal left pillar fluting. All of the above are 1973S cents. Each rehubbed upper second Lincoln Memorial bay shows weakness on UNUM.

    On early 1973 reverses an errant portion of the rehubbing of the second Memorial bay remain.

    2023_01_10_03.08.47~3.jpg 2023_01_10_03.07.59~4.jpg
    2023_01_09_17.51.08~3.jpg 2023_01_09_17.51.53~3.jpg 2023_01_09_17.51.42~3.jpg 2023_01_09_17.51.59~3.jpg 2022_12_31_03.10.48~5.jpg 2023_01_09_17.52.34~3.jpg

  • #2
    Diagonal first Lincoln Memorial pillar fluting 1973.

    2023_01_14_20.22.47~2.jpg

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    • #3
      Hello. I think the reason your not getting a response is these photo's to me look more like a clashed die. first photo. What I believe your calling ""Fluting is normal on alot of the mid 1970 dies. I've seen this on multiple 1972 and other dies. It's common.

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