6 – Dan Dunn

A panel from the comic strip "Dan Dunn", published in Famous Funnies #6, December 1934.
Dan Dunn, 1934

Famous Funnies #6 (December 1934) marks the first time that consecutive comic strips were reprinted together in a comic book for better reading.  This is a panel from a 4-page section of square-jawed Detective “Dan Dunn“, Secret Operative 48, one of many hat-wearing detectives of the era (the most famous being Dick Tracy).