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Re: Nickel on clad planchet!?

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  • Mike Diamond
    ... set ... Yes, whether it s a dime planchet or dime stock, if the minimum die distance is unusually small, you ll get a strong strike. But this is quite
    Message 1 of 5 , Jun 19, 2003
      --- In errorcoininformationexchange@yahoogroups.com, pwrwgndrvr
      <no_reply@y...> wrote:

      > Mike, if it's struck on a dime planchet, and the die distance is
      > low enough, the strike will be strong.

      Yes, whether it's a dime planchet or dime stock, if the minimum die
      distance is unusually small, you'll get a strong strike. But this is
      quite uncommon among the numerous nickel-on-dime planchets that I've

      I think the copper ring around
      > the edge may be that the copper core expanded more than the clad
      > layers. Especially considering that the core is much thicker than
      > clad layers, and therefore there is more material in the core, it
      > seems obvious that the core would squeeze out past the clad layers,
      > when not retained by the collar. Is the fissure u see simply the
      > of the clad layer, where the core has risen up around the edge,
      > like the coins struck thru a clipped planchet?

      I know what you're saying, but this is entirely different. On those
      rare occasions when the copper core does extrude past the outer clad
      layers (most often seen in off-center strikes) there is no fissure.

      The circular fissure seen in this 1971-D nickel, on Fred's three
      wierd quarters, and on Fred's Kentucky quarter-on-dime planchet, is
      quite dramatic and indicates that some overhanging metal was struck
      into the coin. Exactly how the planchets were damaged or altered
      prior to the strike to create this effect, I couldn't say. My best
      guess is that they were severely compressed in some rotating squeeze
      device. It may be a malfunctioning or improperly adjusted upset mill
      (that's the most likely candidate), but who really knows?
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