Check out these Kennedy half dollar coins for sale that were originally issued 1964 through present day. This fifty-cent coin is a memorial to the late President John F. Kennedy, and the planning of the coin started within hours of his assassination. The much sought after 1964 Kennedy Half Dollar is 90% silver, while the 1964-1970 coins are 40% silver. The coins after 1970 do not contain any silver. There is a special design on the back of the the U.S. Bicentennial Kennedy Half Dollars that were minted in 1975 and 1976. The collector's edition Gold Kennedy half dollar was issued in 2014. Browse through the best deals on Kennedy half dollar coins for sale below and add some to your collection.