Key dates including 1914-D and 1931-S; sets missing 1856, 1864-L, 1869, 1872, 1876, 1877, 1908-S, 1909-S, 1909-S V.D.B., 1960-S, 1963, 1967, 1968, 1968-S, 1969, 1969-S, 1969-D, 1970-S, 1970-D, 1971, 1971-S, 1971-D, 1973, 1973-S and 1973-D