NASA, Space, Viking Mission to Mars, 1978 AC First Issue USA

United States Commemorative Postage Stamp, Viking Missions to Mars, Space, Viking I Lander, United States Unmanned Space Accomplishments,

First Spacecraft to Successfully Land on the Surface of Mars,

Issued July 20, 1978 in Hampton, Virginia,

First Day of Issue Cover, FDC, ArtCraft Engraving Cachet, Unaddressed,

Cover in Removable Transparent Poly Sleeve and Mailed With Protection,

Made in the USA


Genuine First Day of Stamp Issued Cover Cancelled on the First Day of Issue Date by the U.S. Postal Service,