Philadelphia Mint = No Mint Mark, Denver Mint = D Mint Mark, San Fransisco Mint = S Mint Mark.
1971 (P) Copper Nickel Clad Uncirculated coin.
1971 (D) Copper Nickel Clad Uncirculated coin.
1971 (S) Silver Clad (Net Silver weight 0.3161 oz. pure silver), Proof and Uncirculated coins.
1972 (P) Copper Nickel Clad Uncirculated coin.
1972 (D) Copper Nickel Clad Uncirculated coin.
1972 (S) Silver Clad (Net Silver weight 0.3161 oz. pure silver), Proof and Uncirculated coins.
1973 (P) Copper Nickel Clad Uncirculated coin.
1973 (D) Copper Nickel Clad Uncirculated coin.
1973 (S) Copper Nickel Clad Proof Coin
1973 (S) Silver Clad (Net Silver weight 0.3161 oz. pure silver), Proof and Uncirculated coins.
1974 (P) Copper Nickel Clad Uncirculated coin.
1974 (D) Copper Nickel Clad Uncirculated coin.
1974 (S) Copper Nickel Clad Proof Coin
1974 (S) Silver Clad (Net Silver weight 0.3161 oz. pure silver), Proof and Uncirculated coins.
1976 (P) Copper Nickel Clad Uncirculated coin.
1976 (D) Copper Nickel Clad Uncirculated coin.
1976 (S) Copper Nickel Clad Proof Coin
1976 (S) Silver Clad (Net Silver weight 0.3161 oz. pure silver), Proof and Uncirculated coins.
1977 (P) Copper Nickel Clad Uncirculated coin.
1977 (D) Copper Nickel Clad Uncirculated coin.
1977 (S) Copper Nickel Clad Proof Coin.
1978 (P) Copper Nickel Clad Uncirculated coin.
1978 (D) Copper Nickel Clad Uncirculated coin.
1978 (S) Copper Nickel Clad Proof Coin
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