NGC 2005-P Minnesota quarter reverse missing clad layer. The coin is copper on the reverse side, because the clad layer was missing before strike.   MS64 Red/Brown

PCGS 2005-D California quarter reverse missing clad layer. The coin is copper on the reverse due to the outer nickel layer missing before the coin was struck.   California is a very scarce state...

Superb example, with blazing red luster on the state side.

NGC 2002-P Louisiana quarter reverse missing clad layer. The coin is copper on the state side, which is the most desirable side to have missing.   A scarce state for missing clad layers...

ANACS 2003-D Alabama state quarter with a missing obverse clad layer. The coin is copper on the obverse side, and weighs 4.67 grams. A scarce state for missing clad layer quarters. AU58 Brown

NGC 2006-P South Dakota quarter missing reverse clad layer. The coin is copper due to the clad layer missing before strike.   MS62 Red

NGC 2008-D New Mexico quarter obverse missing clad layer. The obverse side is copper due to the clad layer missing before strike.   Very scarce state for missing clad layers.   MS63...

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...