January, 1940. Vol. 3, Number 1. AMAZING MYSTERY FUNNIES is published monthly by Centaur Publications, Inc., 420 De Soto Avenue, St. Louis, Missouri, Editorial and Executive offices: 215 Fourth Avenue, New York, N. Y.
On sale date from the publication date found at the Catalog of Copyright Entries, Part 2, Periodicals, New Series, Volume 35, January-December 1940, Numbers 1-4. Second class permit. Copyright number 441345.
Original indexer listed art credits as Robert Butts but is signed Gustavson.
Art credits verified by Terry Gustafson, son of Paul Gustavson.
Letterer credit courtesy of Terry Gustafson, son of Paul Gustavson.
Art credits from features appearance in Dell's The Funnies