1976 31¢ Air Post - Plane, Flag, & Globes Mint Sheet

U.S. Scott #C44 25¢ Air Post - Plane & Globe Mint Sheet of 50

U.S. Scott #C43 15¢ Air Post - Globe & Doves Mint Sheet of 50

U.S. Scott #C78 11¢ Air Post - Plane Silhouette Mint Sheet of 100

U.S. Scott #C28 15¢ Air Post - Transport Plane (Brown Carmine) Mint Sheet of 50

U.S. Scott #C77 9¢ Air Post - Delta Winged Plane Mint Sheet of 100