H.E. Harris

United States #C34 10¢ Air Post - Pan American Flag Mint Sheet of 50

United States #C35 15¢ Air Post - New York Skyline Mint Sheet of 50

United States #C49 6¢ Air Post - Air Force Mint Sheet of 50

United States #C117 44¢ Air Post - New Sweden Mint Sheet of 50

United States #C115 44¢ Air Post - Transpacific Airmail Anniversary Mint Sheet of 50

United States #C114 39¢ Air Post - Lawrence & Elmer Sperry Mint Sheet of 50

United States #C113 33¢ Air Post - Alfred Verville Mint Sheet of 50

United States #C109-12 35¢ Air Post - Summer Olympics (4 Varieties, Attached) Mint Sheet of 50 Varieties include: #C109 - Fencing #C110 - Cycling #C111 - Volleyball #C112 - Pole Vault

United States #C105-08 40¢ Air Post - Summer Olympics (4 Varieties, Attached) Mint Sheet of 50 Varieties include: #C105 - Shot Put #C106 - Men's Gymnastics #C107 - Women's Swimming #C108 -...

United States #C101-04 28¢ Air Post - Summer Olympics (4 Varieties, Attached) Mint Sheet of 50 Varieties include: #C101 - Women's Gymnastics #C102 - Hurdles #C103 - Women's Basketball #C104 -...

United States #C90 31¢ Air Post - Plane, Flag, & Globes Mint Sheet of 50

United States #C88 26¢ Air Post - Mt. Rushmore Mint Sheet of 50