UNCIRCULATED COLLECTION: A box containing two albums with an uncirculated collection of 81 John F. Kennedy U.S half dollars (by PCS Stamps and Coins) as almost a complete run through to 2012. Each coin is accompanied by a mint US stamp, marking some element of US political significance or other connection with the man himself. The 1964 half dollars were made from 90% silver. The half dollars made from 1965 through 1970 have a net composition: 40% silver and 60% copper. Coins minted in 1971 and beyond have no silver content. (81 coins) Cross Reference: UNITED STATES OF AMERICA, COINS (Image)