Bidspirit auction | 18 U.S. MINT PROOF SETS:
18 U.S. MINT PROOF SETS: - 1969, 71, (2) 75, (2) 76, 78, 79, 80-84, 86-88, (2) 89. ESTIMATE $110 - $130.
18 U.S. MINT PROOF SETS: - 1969, 71, (2) 75, (2) 76, 78, 79, 80-84, 86-88, (2) 89. ESTIMATE $110 - $130.