PCGS 2000-P Massachusetts quarter missing clad layer reverse. The coin is copper on the reverse side due to the clad layer missing before strike. MS64 Red/Brown
2000-P 25c Massachusetts quarter reverse missing clad layer (minor hints of nickel retained on the coin's reverse.) The coin is about 95% copper and 5% nickel on the reverse.
PCGS James Madison dollar obverse manganese layer missing before strike. The coin is copper colored on its obverse due to the outer manganese clad layer missing before strike. Scarce.
MS64...
PCGS 1974-D Washington quarter struck on a cent planchet. The coin is an off-metal, struck on the bronze planchet of a Lincoln cent. The coin has red/coppery surfaces, and is dramatic in appearance...