On sale date from the publication date and volume number found in the Catalog of Copyright Entries, Part 2, Periodicals, New Series, Volume 34, 1939, Number 3. Class B periodical. Copyright number B 427671. Copyright given to Stephen Slesinger, Inc.
Indexed from scanned copy at https://digitalcomicmuseum.com
which is missing the 3-page Tarzan story due to copyright.