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Blank Planchet

Blank Planchet
These planchets have not passed through the upset mill. The upset mill raises or upsets the edge of the planchet for the purpose of better striking and stacking of the coins. Discs without an upset edge are correctly called blanks. They are generally assumed to be easy to fake, but recent investigations have found this to be much more difficult than first thought. No Type I copper-plated zinc cent blanks are known. This is due to the fact that the copper plating is applied after the blank passes through the upset mill.

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