Bidspirit auction | 16 U.S. PROOF SETS IN
16 U.S. PROOF SETS IN ORIG PACKAGE - FOUR 1968, 1969, TWO 1970, 1971, 1972, THREE 1979, TWO 1991, 1992, AND 1995
16 U.S. PROOF SETS IN ORIG PACKAGE - FOUR 1968, 1969, TWO 1970, 1971, 1972, THREE 1979, TWO 1991, 1992, AND 1995