The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1940, New Series, Vol. 35, No. 3.
Artist's first named revised from Lance to Grant per Henry Andrews by Craig Delich 2010-3-21.
Inks identification by Greg Theakston. "Jack Kirby? (Hank Christy)" removed from pencils field. "Jack Kirby?" removed from script field.
Letterer credit added by Craig Delich 2010-3-20.