1981 18¢ American Red Cross Plate Block

United States #1910 18¢ American Red Cross Mint Single

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 #1927 18¢ Alcoholism Plate Block of 20 *Plate number and position may vary from image shown.

United States #1928-31M 18¢ American Architecture Mint Se-tenant Block of 4

United States #1925 18¢ Disabled Persons Plate Block

United States #1890 18¢ "Waves of Grain" Plate Block of 20

United States #1933 18¢ Bobby Jones Plate Block

United States #1932 18¢ Babe Zaharias Plate Block

United States #1858 18¢ George Mason Plate Block*Plate number and position may vary from image shown.