Group of 2 United States Mint Set in Original Government Packaging! From 1968-1969 with 20 Coins Inside!. Group of 2 United State Mint Set from 1968-1969 included a total of 20 coins struck at three different mint facilities. Each set comprised of Lincoln Cents (P, D, S), Jefferson Nickels (D, S), Roosevelt Dimes (P, D), Washington Quarters (P, D), and one Kennedy Half Dollar (D). Notably, the half dollar included in the set was struck in a composition of 40% silver. The Philadelphia Mint coins and the single Lincoln Cent struck at the San Francisco Mint were placed within a cellophane pack with a blue stripe and the Denver Mint coins were placed in a pack with a red stripe. The two were placed between sheets of light cardboard within a white envelope marked “19__ U.C.” with the Treasury Department address.