#1

On sale date from a promotional advertisement in Minute Man (Fawcett, 1940 series) #1. Same on sale date confirmed from the publication date as submitted to the U.S. Copyright Office found in the Catalog of Copyright Entries; Part 1; Group 2; Pamphlets, Leaflets, Contributions to Newspapers or Periodicals, Etc., Lectures, Sermons, Addresses for Oral Deliveries, Maps; 1941; New Series; Volume 38; Number 6. Copyright number: AA 368497.

Available as a scan at goldenagecomics.co.uk.