This 23 coin set includes the following coins. 1971S and 1972S are BOTH 40% SILVER from SILVER PROOF sets for a total of 2 PROOF coins. 1973S, 1974S, 1976S, 1977S & 1978S are copper-clad (NOT SILVER) from PROOF sets for a total of 5 PROOF coins. We have several items for sale.