All-American Comics #37

In "The Sinister Plot of Professor Caspar," Al takes a car out for a near-fatal test drive, sparking a high-stakes chase that leads the Atom to expose a network of crooked car dealers. Written by Bill O'Connor and illustrated by Ben Flinton with inks by Leonard Sansone, this 1942 adventure blends pulp suspense with early superhero sleuthing. The cover, a dynamic collaboration by Martin Nodell and Irwin Hasen, captures the moment of peril with sharp, expressive detail.