1981 20¢ Desert Plants - 4 Varieties, Attached Plate Block

United States #1928-31 18¢ American Architecture - 4 Varieties, Attached Plate Block Varieties include: #1928 - New York University Library #1929 - Biltmore House #1930 - Palace of the Arts #1931 -...

United States #2076-79 20¢ Orchids - 4 Varieties, Attached Plate Block Varieties include: #2076 - Wildpink (Arethusa bulbosa) #2077 - Yellow Lady's-Slipper (Cypripedium calceolus) #2078 -...

United States #2082-85 20¢ Olympics - 4 Varieties, Attached Plate Block Varieties include: #2082 - Men's Diving #2083 - Long Jump #2084 - Wrestling #2085 - Women's Kayaking *Plate number and...

United States #2032-35 20¢ Ballooning- 4 Varieties, Attached Plate Block Varieties include: #2032 - Intrepid #2033 - Red, white, & blue balloon #2034 - Yellow, gold, & green balloon #2035 -...

United States #1912-19 18¢ Space Achievements - 8 Varieties, Attached Plate Block Varieties include: #1912 - Exploring the Moon #1913 - Releasing Boosters #1914 - Cooling Electric Systems #1915...

United States #2019-22 20¢ American Architecture - 4 Varieties, Attached Plate Block Varieties include: #2019 - Fallingwater Mill Run #2020 - Illinois Institution of Technology #2021 - Gropius...

United States #2067-70 20¢ Winter Olympics - 4 Varieties, Attached Plate Block Varieties include: #2067 - Ice Dancing #2068 - Downhill Skiing #2069 - Cross Country Skiing #2070 - Hockey *Plate...

United States #1937-38 18¢ Yorktown/Virginia Capes - 2 Varieties, Attached Plate Block Varieties include: #1937 - Yorktown #1938 - Virginia Capes *Plate number and position may vary from image...

United States #2027-30 20¢ Winter Scenes of Christmas - 4 Varieties, Attached Plate Block Varieties include: #2027 - Sledding #2028 - Snowman #2029 - Skating #2030 - Decorating *Plate number and...