1984 Orchids Flowers Plate Block of 4 20c Postage Stamps - MNH, OG - Sc# 2076-2079
1972 National Parks Hawaii Airmail Plate Block Of 4 11c Postage Stamps - MNH, OG - Sc# C84 - CX443
1956 Devil's Tower National Monument Plate Block of 4 3c Stamps - MNH, OG - Sc# 1084 - CX899
1956 Wildlife Conservation Plate Block of 4 3c Postage Stamps - MNH, OG - Scott# 1078 - CX904
1956 Wildlife Conservation Plate Block of 4 3c Postage Stamps - MNH, OG - Scott# 1077 - CX922
1956 Wildlife Conservation King Salmon Plate Block of 4 3c Postage Stamps - MNH, OG - Scott# 1079 - CX923
1963 John James Audubon Columbia Jays Plate Block Of 4 5c Postage Stamps - MNH, OG - Sc# 1241 - CX208
1964 John Muir Plate Block Of 4 5c Postage Stamps - MNH, OG - Sc# 1245 - CX242
1958 Forest Conservation Plate Block Of 4 4c Postage Stamps - MNH, OG - Sc# 1122 - CX460
1958 - Gardening & Horticulture Plate Block Of 4 3c Postage Stamps - Sc# 1100 - MNH, OG - CX583
1957 Wildlife Conservation Whooping Cranes Plate Block Of 4 3c Stamps - MNH, OG - Sc# 1098 - (BC10a)
1961 Range Conservation Plate Block of 4 4c Stamps - MNH, OG - Scott# 1176 - CX898
1960 World Forestry Congress Plate Block of 4 4c Postage Stamps - MNH, OG - Sc# 1156
1966 Humane Treatment Of Animals Plate Block Of 4 5c Postage Stamps - MNH, OG -Sc# 1307`- CX267
1966 National Park Svc Anniversary Plate Block Of 4 5c Postage Stamps - MNH, OG - Sc# 1314 - CX288
1970 Wildlife Conservation Buffalo Bison Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1392 - CX302
1970 Natural History Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1387-1390 - CX311
1968 Wood Ducks In Flight Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1362 - CX351
1969 Beautification Of America Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1365-1368 - CX353
1969 Botanical Congress Plate Block Of 4 6c Postage Stamps - MNH, OG - Sc# 1376-1379 - CX361
1977 Butterflies Block Of 4 13c Postage Stamps Sc# 1712-1715
1974 Preserve The Environment Block Of 4 10c Postage Stamps - Sc# 1527 - CW204
1980 Coral Reefs Block Of 4 15c Postage Stamps Sc# 1827-1830 - CW205
1981 Desert Cactus Block Of 4 20c Postage Stamps - Sc 1942-1945 - CW208
