New Adventure Comics #10 (22)

In "The Train Robbery, Part 21," the Junior Federal Men Club puts their secret code system to the test as members use carefully crafted signals and passwords to stay one step ahead in their ongoing pursuit. Cover by Creig Flessel, with typeset lettering and a story written in character as Steve Carson, this 1937 issue offers a nostalgic glimpse into early comic book espionage, all within a 10-cent adventure.