At this time, the book is split even between solo Cap stories and solo Iron Man stories. And between the two, we get about one good comic every two issues. In, #61-62 we get Mandarin’s origin and, while it’s not a great story, it’s better than most Iron Man solos and it’s historically “important.”
But in the back half, Captain America literally fights a sumo wrestler. The art is great (some of my favorite Jack Kirby stuff happens in these Tales of Suspense comics), but the story…Ugh.
Also, he fights a mob and uses every part of his body.
Creators: Stan Lee and Don Heck (Iron Man), Stan and Jack Kirby (Captain America)
For the complete history of the MU, year by year, go here.