On sale date from the publication date and volume number found in the Catalog of Copyright Entries, Part 2, Periodicals, 1938, New Series, Volume 33, Number 3. Second class permit. Copyright number 385476.
First issue submission known in the Catalog of Copyright Entries to the Copyright Office of this comic post Wheeler-Nicholson bankruptcy. First submission overall since v2#5 (17) (July 1937).