AIRPLANE SPY RING EXPOSED BY SECRET SERVICE! NOw you can see the amazing inside story of how Uncle Sam's secret guardians smash vicious international air spies! (original poster)
Romance races with mystery...as Arsene Lupin and an American G-Man match wits...to win a girl...and solve a double murder! (Print Ad- Poughkeepsie Eagle-News, ((Poughkeepsie NY)) 7 March 1938)
No lo vas a poder creer
You are invited to a murder!
For this murder mystery writer, the hardest case to solve may be his own.