- 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)
- CONFDENTIAL REPORT FROM SECRET AGENT J-2...Haved won confidence of gang.Tonight am flying smugglers' transport plane across border. Come well armed as they are desperate. (original poster)
- INTERNATIONAL SPIES! BEWARE! No one will learn important government air secrets as long as Uncle Sam's daring secret service men are here! (original poster)
- THRILL SECRETS OF THE SECRET SERVICE! (original poster - all caps)
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Top Gap
By what name was Secret Service of the Air (1939) officially released in Canada in English?
Answer