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surface film doubling

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  • Mike Diamond
    Here s a decent example of surface film doubling in a broadstruck cent: http://cgi.ebay.com/ws/eBayISAPI.dll? ViewItem&item=3018007271&category=524 You can see
    Message 1 of 2 , Apr 16 4:44 AM
      Here's a decent example of surface film doubling in a broadstruck
      cent:

      http://cgi.ebay.com/ws/eBayISAPI.dll?
      ViewItem&item=3018007271&category=524

      You can see shadowy letters above IN GOD WE TRUST as well as shadowy
      design elements on the reverse.

      This is apparently caused by a thin film of oil (or similar viscous
      fluid) on the die face or planchet. The effect is more common on
      nickels and clad coins, but does occur on cents from time to time.
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