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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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2011 Euro 20 Centavos

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  • #1

    2011 Euro 20 Centavos

    A female customer came up to my tables back in December and was intrigued by this coin. I am attaching an obverse and reverse of the coin, along with an overlay. She thinks the items that appear to be die chips may in fact be islands from the reverse, but I am not having any luck trying to line them up. To me, they look like a lot of die chips. What do you all think?

    Euro-Obv-clash.jpg

    Euro-Rev-clash.jpg



    Euro-clash-overlay-small.jpg









    Gary Kozera
    Website: https://MintErrors.org
    Tags: None
  • #2
    I would say die chips. To get that much pressed into the obverse die more details from the reverse would appear on the obverse die. Especially the stars and bars pattern from the reverse. JMHO.

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    • #3
      Agreed, no matter the amount of rotation for one of the dies, the possibility is slim. Add in the fact that the area in question is recessed into the die, the field areas should have something, but there is not much, if anything.

      This may have occurred just after a capped die broke away , or an incomplete cleaning of a die introduced once again to the minting press. It very difficult to know for sure. I will let her know I did not find any logical conclusion to the issue minus the initial findings of die chips.
      Gary Kozera
      Website: https://MintErrors.org

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      • #4
        I was thinking it could be improper hardening of the die steel before use. Also, it could be impurities/flaws in the die steel.

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