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U.S. #C122-25
1989 45¢ Future Mail Delivery
20th UPU Congress

Issue Date: November 27, 1989
First City: Washington, D.C.
Quantity Issued:  425,140,000
Printed by:  Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Perforation: 11
Color: Multicolored

This se-tenant block of four stamps was issued in conjunction with the 20th Universal Postal Congress. The stamps gave postal patrons a glimpse at several potential mail delivery methods of the future. 

These Space Age designs include a hypersonic airliner soaring through space, a mail delivery hovercraft riding along on a cushion of air, a shuttle involved in a mid-space mail transfer, and a land rover craft delivering mail to a space colony. Although these vehicles don’t actually exist, they are based on the industry’s estimation of what future mail delivery transportation could look like.