Captain Marvel Jr. #61

The cover of this May 1948 Fawcett issue poses an irresistible question right on its banner: "Amazed? Astonished?" — and one look explains why, as two identical Captain Marvel Juniors in matching blue-and-gold uniforms are shown mid-brawl, one landing a crackling punch squarely on the other's jaw. Kurt Schaffenberger's cover art captures the wild energy of hero-versus-self with terrific clarity, the red capes swirling dramatically as both figures reel from the impossible confrontation. With Otto Binder scripting "Captain Marvel, Jr. Fights Himself," this is the kind of imaginative Golden Age premise that made Fawcett's line so genuinely fun to read.