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coins-it-is
10-15-2010, 08:00 AM
Hey everyone, does this appear to be a RPM, or just extra metal on the planchet?
DoubleYou
10-15-2010, 09:01 AM
Split plating damage.

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Wendell
Roller
10-15-2010, 09:09 AM
In 1990 the mint started to apply (engrave) the MM directly on the master die. Since then the mark has not been "punched" into dies and the RPM era ended.