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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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1844 Mexico 8 Reales with something going on.

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  • 1844 Mexico 8 Reales with something going on.

    I just bought this coin online today. The images are not mine - they are what was included in the listing. The coin was listed as having massive mechanical doubling. But I think it was caused by something else. I realize the photos are not the best, but does this look like MD to you?


    The reverse is mostly normal as far as I can tell from the photos.


    The doubling (or flattening of design elements) affects the entire obverse.









    When I get the coin, I'll post better photos.
    Last edited by russellhome; 07-24-2009, 08:39 PM.

  • #2
    It looks like a "one-sided" double strike. The coin was struck twice, with the reverse face ("LIBERTAD") seated firmly on the anvil die and the obverse face (eagle) shifting between strikes. Such errors do occur on U.S. coins, although they're rare.
    Mike Diamond. Error coin writer and researcher.

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    • #3
      Thanks for the input Mike. I paid approx. what it was worth as a non-error coin - so I took a chance. I was thinking it had characteristics of a double strike on the reverse. But I could not figure out why the obverse did not have the same type of action going on. I don't know if the double strike was intentional or an error -- but the shifting of the hammer surely made a mess of the design. Again - thanks for your comments.

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      • #4
        The coin arrived this week -- and from my limited knowledge of the topic, it does look like a double strike -- with a weaker 2nd strike after a substantial shift to the southwest. That 2nd strike was only strong enough to flatten previously struck design elements. It also appears to be somewhat tilted, since the strike is heaver in the lower left and weak in the upper right.

        It took me a while to get my head around why little bumps of design elements remained in tacked here and there while the elements around them were flattened. Then I figured it out. The 2nd strike shift left voids from other design elements. So, for example the U in REPUBLICA has a bump in the lower right resulting from the fact that the lower left of the B on the die was in that spot during the 2nd strike.

        There is a flat, diagonal area on the rim that I cannot explain. Perhaps the coin was resting on the collar when the 2nd strike occurred?

        Anyway -- it is a pretty interesting error coin. Here are some photos.














        This last image shows an area that I just can't make sense of. The 2nd strike was heaviest at this spot and perhaps some of what I'm seeing is not simply flattening of the first strike -- but rather part of the design of the 2nd strike making it down to field level.

        One more thing... This type of error makes grading a little tough. It is hard to say if some lack of detail is due to wear, a weak strike, or the double strike error. I'm guessing that this coin is approx. VF/XF, even though LIBERTAD is not fully readable.
        Last edited by russellhome; 07-29-2009, 05:33 PM.

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        • #5
          With my limited knowledge of double struck coins, I can still say it is a very neat coin. Nice one Ken.

          BJ
          Member of: ANA, CCC, CONECA, Fly-in-club, FUN, NLG & T.E.V.E.C.

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