Iron Man #139 1980

Iron Man #139 features an un-helmeted Tony Stark engaged in a fierce battle against Madame Masque and her Dreadnoughts. Jim Rhodes assists Iron Man, while Bethany Cabe, initially sedated, returns to confront Masque after being sent to safety. The villainous Spy-Master also appears, intercepting Rhodes to steal dangerous technology. This issue is notable to collectors for the first appearance of the Dreadnought advanced model MK I and MK II, marking a significant addition to Iron Man's adversaries.