PCGS 2000-P Maryland quarter triple struck, with the 1st strike normal, then the 2nd and 3rd strikes 30% off-center and overlapping. A beautiful triple-strike, and a very scarce state for this error.
PCGS 2000-P Massachusetts quarter obverse missing clad layer. The coin is copper on the obverse side due to the clad layer missing before strike.
The error occurs when the clad layer fails to adhere...