National Comics #24

From August 1942, this Quality Comics wartime number finds Uncle Sam — billed right on the cover as "America's Greatest Hero" — delivering a flying kick straight into a cluster of Nazi-uniformed villains atop what appears to be a massive gun turret, with a young sidekick leaping alongside him. Reed Crandall's cover art crackles with patriotic energy, framing the action with star-shaped portraits of the issue's featured players: Kid Patrol, Sally O'Neil, Destroyer 171, and Quicksilver. A small "For Victory — Buy War Bonds and Stamps" notice in the corner is a fitting reminder of the spirit of the era this ten-cent comic proudly represents.