Susan B. Anthony dollar
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The Susan B. Anthony dollar is a United States dollar coin minted from 1979 to 1981 when production was suspended due to poor public acceptance, and then again in 1999. Wikipedia
Value: 1 U.S. dollar
Composition: .75 copper,.25 nickel, clad to pure copper core
Edge: Reeded
Mint marks: P (Philadelphia Mint); D (Denver Mint); S (San Francisco Mint)
Thickness: 2.00 mm (0.08 in)
Years of minting: 1979–1981, 1999