Mint Plate Blocks

United States #C147 98¢ Air Post - Scenic American Landscapes (Grand Tetons National Park) Mint Plate Block Mint condition, never hinged.

United States #C146 79¢ Air Post - Scenic American Landscapes (Zion National Park) Mint Plate Block Mint condition, never hinged.

United States #C144 72¢ Air Post - Scenic American Landscapes (13-Mile Woods, New Hampshire) Mint Plate Block Mint condition, never hinged.

United States #C138 60¢ Air Post - Scenic American Landscapes (Acadia National Park) Mint Plate Block Mint condition, never hinged.

United States #C136 70¢ Air Post - Scenic American Landscapes (Nine-Mile Prairie, Nebraska) Mint Plate Block Mint condition, never hinged.

United States #C135 60¢ Air Post - Scenic American Landscapes (Grand Canyon) Mint Plate Block Mint condition, never hinged.

United States #C134 40¢ Air Post - Scenic American Landscapes (Rio Grande) Mint Plate Block Mint condition, never hinged.

United States #C131 50¢ Air Post - Americas Issue (Bering Strait) Mint Plate Block Mint condition, never hinged.

United States #C130 50¢ Air Post - Antarctic Treaty 30th Anniversary Mint Plate Block Mint condition, never hinged.

United States #C128 50¢ Air Post - Harriet Quimby, Pioneer Pilot Mint Plate Block Mint condition, never hinged.

United States #C122-25 45¢ Air Post - Futuristic Mail Delivery (4 Varieties, Attached) Mint Plate Block Varieties include: #C122 - Spacecraft #C123 - Air Suspended Hover #C124 - Moon Rover #C125 - Space Shuttle Mint condition, never hinged.

United States #C120 45¢ Air Post - French Revolution Mint Plate Block Mint condition, never hinged.