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Re: Article on coins with flat surfaces now...

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  • Mike Diamond
    Since the hammer die seems to have been completely unmoored, it would make sense for the flat obverse to have been generated by a piece of the die assembly
    Message 1 of 2 , Jun 15, 2013
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      Since the hammer die seems to have been completely unmoored, it would make sense for the flat obverse to have been generated by a piece of the die assembly that had fallen out. But we'll never know for sure.

      --- In errorcoininformationexchange@yahoogroups.com, innff@... wrote:
      >
      > Interesting article Mike. Thanks for the link.
      >
      >
      > In a message dated 6/15/2013 4:01:12 P.M. Eastern Daylight Time,
      > mdia1@... writes:
      >
      >
      >
      >
      > http://www.coinworld.com/articles/printarticle/smooth-flat-surface-is-an-alm
      > ost-infallible-i
      >
      > This article includes a unique and wickedly complex error brought to my
      > attention by Fred Weinberg and which once belonged to Arnie Margolis. It took
      > me a few days to figure out what probably happened. But many
      > uncertainties remain.
      >
      > The Mint's explanation was that the nickel was at the bottom of a pileup
      > and that this coin was extruded from the pile as a result of the enormous
      > pressures generated. I've seen many coins and pieces of coin shrapnel derived
      > from pileups and they look nothing like this. A coin from a pileup would
      > not show the design ending in the middle of a planchet.
      >
      > One big mystery is what produced the flat surface on the obverse face.
      > While the feeder mechanism could be responsible, every coin I've seen struck
      > through a feeder finger or feeder arm has a rough or matte surface. But as
      > we saw from that pictorial tour of the San Francisco Mint I posted a link
      > to, the die assembly has many components.
      >
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