ANACS 2001-P Sacagawea dollar reverse missing clad layer. The clad layer separated from the coin before strike. As a result, the coin is more "copper" colored in appearance on it's reverse, which is...
PCGS 2001-P Sacagawea dollar off-metal struck on a clad quarter planchet. The quarter planchet is nickel in appearance, and makes a dramatic contrast to a normal Sacagawea dollar's manganese color...