Strange Tales, Vol. 1 #132 (1965)

The Sinister Spacetrap! / Face-to-Face at Last with Baron Mordo!
"The Sinister Space Trap" - A representative of NASA comes to the Fantastic Four. They suspect a traitor within their ranks, and they need a backup astronaut to watch him on the next shuttle trip. They ask Johnny Storm to go undercover, but it doesn't take long for the intelligent traitor to see through the deception. "Face-To-Face At Last With Baron Mordo!" - Dr. Strange manages to regain entry into his own home, intent to use the all-seeing Eye of Agamotto to determine the source of Mordo's new powers. His search is pointless, as Mordo rigged the Eye, and arrives to attack with the full power of Dormammu at his command.
Release Date: 1965