If the need arises, your 1964 JFK, US Constitutional Silver Half-Dollars, will make great fractional Silver Money, for trading & bartering, Staker Stacker - @ssjsasha. This only applies to the 1964s, with their 90% Silver content, 0.361 Troy-Ounce. Three would have, about, 1.08 T-oz pure Silver. The other 10%, is Copper content, with additional value. Thanks again, Staker Stacker - @ssjsasha.