NGC 2006-P South Dakota quarter reverse missing clad layer. The reverse side is copper, which is the ideal side to have with the clad layer missing. It weighs 4.6 grams.
MS64 Red/brown
NGC 2021-D Crossing the Delaware quarter, with the reverse missing the clad layer. A very scarce design for missing clad layer quarters, and tough to find! The coin is copper on the reverse, with...
2004-D Iowa quarter reverse missing clad layer. The quarter is copper on the reverse side, because the nickel outer later was missing before strike. A somewhat scarcer state for missing clad layers...