I think I'm going to have to defer to Todd and Bruce on this one. The crummy artwork - which is what was making me go later - does seem to be reinforced by the crummy artwork of poor Ms. D on the "Scarlet Empress."
Found this on teh interwebs:
I suspect this is definitely the "inspiration" for Harry's one sheet, now whether or not it's actually from the '38R is open for debate, I'd tend to lean for it being from the '40s for it though, as the film was playing right into the second great war, and the so-called artist had access to this earlier advertising material for his basic design.
Edit: Ya know, thinking this through a little more, I wonder if this actually could have been the poster used for these "race theater" showings (even in '38)? It does have the same rough quality as many of the Toddy posters.
--Peter