Lot of (2) Sets of Circulation Strike Mercury and Roosevelt Dimes. Both are housed in Whitman blue folders. Included are: Mercury, 1916-1945; and Roosevelt, 1946-1975. Most coins are circulated, the second folder with a number of duplicate Mercury dimes as well as an 1873 Arrows Liberty Seated dime. (Total: approximately 138 coins) From the T. Boone Pickens Jr. Collection.