This issue has variants.
Distributed to newstands in March 1964. This issue includes 10 pages of paid advertisements.
Distribution date from Joseph Marek's Marvel Comics Group history website.
Letters credits from George Olshevsky's Marvel Comics Index.
The Mandarin last appears in issue #50 (February 1964). This story continues next issue.
Sequence inclusion due to David Postle via the GCD Error List (27 February 2007). The first page is printed between the pages of the Iron Man story, while the second page is printed between the back-up story and Tales of the Watcher story. The last page is split with a promo.