Kennedy Half Dollar.
- Production from the U.S. Mint started in 1964.
- Minted at Philadelphia, Denver and San Francisco.
- 1964 is 90% Silver.
- 1965 to 1970 is 40% silver.
- 1971 P and D are Clad.
- In 1992, the U.S. Mint started making a 90% silver proof.
Kennedy Half Dollar.