Iron Man #142 - Debut Of Iron Man Space Armor 1981

In Iron Man #142 from January 1981, Tony Stark returns to find SHIELD investigating mysterious deaths in Allentown, Iowa, caused by space-borne microwave radiation. After a Roxxon sleeper agent attempts to derail the inquiry, Iron Man dons his newly introduced prototype Space Armor Mark I to venture into orbit. He discovers a massive, cloaked Roxxon space station, Star Well, as the source of the deadly microwaves. This issue is highly notable for collectors as it marks the first appearance of Iron Man's iconic Space Armor.