Lot of 8 Original 1970s United States Proof Sets. These United States Proof Sets are all in Excellent Condition as pictured. They all come in the original Envelope and protective plastic shell as issued by the government. You get (1) 1971 set, (1) 1972 set, (1) 1973 set, (2) 1974 sets, (1) 1975 set, (1) 1977 set, and (1) 1978 set. All 8 sets for one bid. See pictures for complete condition and description.