Extra Fine to Brilliant Uncirculated Stock Photography The 1964 Kennedy Half Dollars are among the most sought after of all 90% silver coins. These half dollars, the first to feature the now-familiar portrait ofPresident John Kennedy, have been beloved as souvenirs and vessels of silver bullion among generations of Americans. Struck within weeks of the president?s assassination in Dallas, Texas, on November22, 1963, and introduced to the public by March 1964, these early Kennedy Half Dollars remain one of the top collectibles in United States numismatics.