|Composition||1964: 90% Silver
1965-1970: 40% Silver; Outer layer: 80% silver 20% copper, core of 21.5% silver, 78.5% copper
1971-Date: Clad; Outside: 75% Copper, 25% Nickel; Core: 100% Copper
1976 Silver Collector Coins: Silver Clad 40%: 80% silver 20% copper, core of 21.5% silver, 78.5% copper
1992-Date Silver Proof: 90% Silver
The Kennedy half dollar, first minted in 1964, is a fifty-cent coin currently issued by the United States Mint. Intended as a memorial to the assassinated President John F. Kennedy, it was authorized by Congress just over a month after his death. Use of existing works by Mint sculptors Gilroy Roberts and Frank Gasparro allowed dies to be prepared quickly, and striking of the new coins began in January 1964.