This issue has variants.
Distributed to newstands in May 1964. This issue includes 10 pages of paid advertisements.
Distribution date from Joseph Marek's Marvel Comics Group history website.
Letters credit from George Olshevsky's Marvel Comics Index.
Unicorn next appears in a cameo in Fantastic Four Annual (Marvel, 1963 series) #3 (1965), before appearing in X-Men (Marvel, 1963 series) #22 (July 1966).
Advertises Strange Tales (Marvel, 1951 series) #123 (August 1964) and Tales to Astonish (Marvel, 1959 series) #58 (August 1964). Printed between the pages of the Iron Man story.
Text story with illustration. Printed between the Iron Man story and the Tales of the Watcher story. Continues from last issue.