Tales of Suspense #59

Iron Man battles and defeats the villainous Black Knight. Meanwhile, Pepper and Happy, unaware that Iron Man is Tony Stark, break into Stark's locked office believing him to be in need of medical assistance. They find Iron Man there recovering from his recent battle and demand to know the whereabouts of Stark. Iron Man tells them Tony has left for awhile, putting him in charge, leaving the two of them with deep suspicions.