Copyright 1941 by K. K. Publications, Inc.
The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1941, New Series, Vol. 36, No. 2.
Cover art confirmed in Alter Ego #151 (March 2018). ? removed.
On inside front cover in black, white and red.
Copr., 1941, by R. S. Callender.