1982 Wolf Trap Farm Park For Arts Plate Block of 4 20c Postage Stamps - MNH, OG - Sc# 2018
1983 Civilian Conservation Corps CCC Plate Block of 4 20c Postage Stamps - MNH, OG - Sc# 2037
1983 Tennessee Valley Authority Block of 4 20c Postage Stamps - MNH, OG - Sc# 2042
1981 Wildlife Habitat Preservation Plate Block Of 20 18c Postage Stamps - Sc 1921-1924 - CW221a
1980 Coral Reefs Plate Block Of 12 15c Postage Stamps Sc# 1827-1830 - CW205a
1981 Rachel Carson Plate Block Of 4 17c Postage Stamps - Sc# 1857 - MNH - CX807a
1981 Flowers Rose, Camellia, Dahlia, Lily Block of 4 18c Postage Stamps - MNH, OG - Sc# 1876-1879
1979 Endangered Flora Block of 4 15c Postage Stamps - MNH, OG - Sc# 1783-1786
1981 Wildlife Habitat Preservation Block Of 4 18c Postage Stamps - Sc 1921-1924 - CW221a
1981 Desert Cactus Plate Block Of 4 20c Stamps - Sc 1942-1945 - CW208a
1981 Rachel Carson Block Of 4 17c Postage Stamps - Sc# 1857 - MNH - CX807
1981 USA Wildlife Stamp Booklet Pane - 10 18c Stamps - MNH, OG - Scott# 1889 - CX400
1981 Wildlife Habitat Preservation - Plate Blk Of 4 - Sc 1921-1924 - CW221
1979 Endangered Flora Plate Block of 12 15c Postage Stamps - MNH, OG - Sc# 1783-1786
1977 Energy Development/Conservation Block of 4 13c Postage Stamps -Sc# 1723-1724 -MNH, OG - CQ48a
1978 Lighthouse Plate Block Of 4 29c Postage Stamps - Sc# 1605 - MNH, OG - CX466
1978 Wildlife Conservation Owls Plate Block Of 4 15c Postage Stamps - MNH, OG - Sc# 1760-1763 - CX315
1977 Energy Development/Conservation Plate Block of 12 13c Postage Stamps -Sc# 1723-1724 -MNH, OG - CQ48
1968 Arkansas River Navigation Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1358 - CX347
1968 Hemisfair '68 - Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1340 - CX295
1966 Plant For More Beautiful America Plate Block Of 4 5c Postage Stamps - MNH, OG - Sc# 1318`- CX236
1971 Historic Preservation Plate Block Of 4 8c Postage Stamps - MNH, OG - Sc# 1440-1443 - CX313
1970 Save Our Soil, Cities, Water, Air Plate Block Of 4 6c Postage Stamps - Sc# 1410-1413 - MNH, OG - CX547
1971 Wildlife Conservation Plate Block Of 4 8c Postage Stamps - Sc# 1427-1430 - MNH, OG - CX526
