There have been small variations up unto 1999, and just one year of non-minatage in 1975. These coins were 90% silver up until 1964, at which time the US Mint switched to a copper and nickel mixture.
There have been small variations up unto 1999, and just one year of non-minatage in 1975. These coins were 90% silver up until 1964, at which time the US Mint switched to a copper and nickel mixture.