PART V: Planchet Errors:

Wrong Planchet and Off Metal Errors

Definition: A wrong planchet error is exactly what the name indicates – a coin struck on a planchet intended for another denomination (domestic or foreign). The incorrect planchet may have the same composition (e.g. a quarter struck on a dime planchet) or it may be a different composition (e.g., a quarter struck on a nickel planchet).

An off-metal error is a coin struck on a planchet whose composition does not match the composition that normally characterizes the coin. While off-metal errors can be wrong planchet errors, this is not always the case. For example, a dime struck on a copper core is off-metal but is not really a wrong planchet.

The coin below is both a wrong planchet and an off-metal error. It is a Monroe Dollar struck on a dime planchet.

This 1987-P Jefferson nickel was struck on clad quarter dollar stock. A coil of quarter dollar stock was mistakenly fed into a blanking press punching out nickel blanks.

A Sacagawea planchet somehow found its way into the coin press that was striking 1999-P Susan B. Anthony dollars.

This coin is comes to us courtesy of Mark Lighterman

Images were taken through an encapsulation.