The 1964 Kennedy Half Dollar is a coin of great historical significance. It was issued to commemorate the assassination of President John F. Kennedy in 1963. The coin was designed by Gilroy Roberts and Frank Gasparro and was the first coin to feature a portrait of a President on the obverse. The reverse of the coin features a modified version of the Presidential Seal. The Kennedy Half Dollar was first issued in 1964 and was made of 90% silver. It was minted until 1970, when the composition was changed to a copper-nickel alloy. The coin was re-issued in 1975 and 1976 to commemorate the bicentennial of the United States. The 1964 Kennedy Half Dollar is a popular coin among collectors. It is highly sought after due to its historical significance and its silver content. The coin is also popular due to its attractive design. The obverse features a portrait of President Kennedy, while the reverse features a modified version of the Presidential Seal. The 1964 Kennedy Half Dollar is a valuable coin. The value of the coin depends on its condition and its mint mark. Uncirculated coins are worth more than circulated coins. Coins with the “D” mint mark are worth more than coins with the “P” mint mark. The 1964 Kennedy Half Dollar is a valuable coin and is a great addition to any collection.