Bidspirit auction | (3) 1971-1972, (1) 1974, (3)
(3) 1971-1972, (1) 1974, (3) 1976 US PROOF SETS - BID WITH SILVER CITY AUCTIONS ESTIMATE $80 - $120.
(3) 1971-1972, (1) 1974, (3) 1976 US PROOF SETS - BID WITH SILVER CITY AUCTIONS ESTIMATE $80 - $120.