After then guest-starring in the feature "Iron Man" in "Tales of Suspense" #58 (Oct. 1964), Captain America gained his own solo feature in that "split book", beginning the following issue. Issue #63 (March 1965), which retold Captain America's origin, through issue #71 (Nov. 1965) was a period feature set during World War II and co-starred Captain America's Golden Age sidekick, Bucky. Kirby drew all but two of the stories in "Tales of Suspense," which became "Captain America" with #100 (April 1968); Gil Kane and John Romita Sr., each filled in once. Several stories were finished by penciller-inker George Tuska over Kirby layouts, with one finished by Romita Sr. and another by penciller Dick Ayers and inker John Tartaglione. Kirby's regular inkers on the series were Frank Giacoia (as "Frank Ray") and Joe Sinnott, though Don Heck and Golden Age Captain America artist Syd Shores inked one story each. A story in issue #155-157 revealed the 1950s "Commie Smasher" Captain America and Bucky to be imposters.