Proof 1980-82, die proofs (W) with 27, consisting of 1980 Impressionist Paintings (set of 9, one defaced) 1981 Rockwell (set of 8), 1983 Soil Erosion Prevention (set of 10), all on gummed paper; also die proofs (F) with 1982 Bacillus (4) in annotated folder, accompanied by cut outs (5) of Koch's head