H.E. Harris

United States #C75 20¢ Air Post - USA & Plane Mint Plate Block

United States #C74 10¢ Air Post - Air Mail Anniversary Mint Plate Block

United States #C72 10¢ Air Post - 50-Star Mint Plate Block

United States #C71 20¢ Air Post - "Columbia Jays" Mint Plate Block

United States #C69 8¢ Air Post - Dr. Robert H. Goddard Mint Plate Block

United States #C68 8¢ Air Post - Amelia Earhart Mint Plate Block

United States #C66 15¢ Air Post - Montgomery Blair Mint Plate Block

United States #C63 13¢ Air Post - Statue of Liberty (Redrawn) Mint Plate Block

United States #C60 7¢ Air Post - Jet Airliner Silhouette Mint Plate Block

United States #C67 6¢ Air Post - Bald Eagle Mint Plate Block

United States #C64 8¢ Air Post - Plane & Capitol Building Mint Plate Block

United States #C59 25¢ Air Post - Abraham Lincoln Mint Plate Block