Distributed to newstands in February 1961. This issue includes 10 pages of paid advertisements.
Distribution date from Joseph Marek's Marvel Comics Group history website.
Cover inker confirmed by Nick Caputo via the GCD Errors list, December 2008. The original indexer had credited Ayers with a question mark.
Narrated in the first person. This story is divided into two chapters: an untitled chapter one (6 pp) and chapter two—"Spragg" (7 pp). Spragg and Prof. Robertson next appear in Sensational She-Hulk (Marvel, 1989 series) #31 (September 1991). Job number from Tom Lammers and Ger Apeldoorn via the Atlas/Timely discussion group.
Job number from Tom Lammers and Ger Apeldoorn via the Atlas/Timely discussion group.
Narrated in the second person. Job number from Tom Lammers and Ger Apeldoorn via the Atlas/Timely discussion group.