8.5x10-3/8" sheet has wonderful art we believe to have been done by Whitney Ellsworth showing boy running up to newsstand saying "Say Mister! I Want To Buy The Magazine With Superman!" as the news dealer says "Then You Want A Copy Of Action Comics! Superman Appears In Action Comics Each And Every Month!" Lower left has Joe Shuster-inspired image of Superman w/o cape and lower right has "Action Comics" comic book title logo. "Superman Is The Leading And Most Popular Comic Strip In The Country. This Feature Appears Each Month In Action Comics." text at top w/"Superman Sales Demand Front Display For Action Comics." at bottom. Illustration features various comic books visible on rack, including "All-American" (first published in April, 1939) and ad does not show or mention the first issue of "Superman" which came out in Summer 1939, leading us to believe that this flier was published in-between those dates. Extreme top margin edge has barely noticeable and very faint lt. moisture mark and sheet is evenly aged. Thin paper sheet remains supple and is VF overall. In light of the recent extraordinary sales of "Action Comics" #1, it is important to note that there are far fewer of this flier known as opposed to existing copies of "Action Comics" #1. This flier was only sent to a select few newsstand dealers/distributors and is exceedingly rare. Only the second example we've offered in our 48 years. Superb design and historic. Franco Toscanini Collection.