Distributed to newstands in February 1961. This issue includes 10 pages of paid advertisements.
Some information on this issue supplied by Tom Lammers, Dr. Michael J. Vassallo, and others via the Atlas/Timely discussion group. Distribution date from Joseph Marek's Marvel Comics Group history website.
in Monsters on the Prowl (Marvel, 1971 series) #24 (August 1973) [as "This is...Magnetor!"; original title "This Is...Magneto!"]
in Monsters on the Prowl (Marvel, 1971 series) #24 (August 1973)Narrated in the first person. This story is divided into two parts: an untitled part one (6 pp) and part two—"Magneto!"(7 pp).
from Uncanny Tales (Marvel, 1952 series) #32 (June 1955)Text story with illustration.
in Amazing Stories of Suspense (Alan Class, 1963 series) #143 ([no date])Narrated in the second person.
in Monsters on the Prowl (Marvel, 1971 series) #24 (August 1973) [retouched into a SHIELD vs Hydra story]