A Group of eighty-one U.S. Proof Sets, including 1940, 1941, 1942, 1950, 1951, 1952, 1953 (2), 1954 (3), 1955 (6), 1956 (9), 1957 (9), 1958 (7), 1959 (7), 1960 (7), 1961 (8), 1962 (3), 1963 (7), 1964 (4), 1971 (3), mostly choice to gem Proofs, many with original packaging (81 sets)