Superman #68

Superman stands trapped inside a glowing energy field, clutching his head in apparent agony, while a bald, lab-coated Luthor operates sinister machinery nearby and a horrified woman recoils at the sight — Win Mortimer's cover for this 1951 DC issue captures the tension of a scientific showdown with immediate, visceral impact. Promising "52 Big Pages," the cover's bold tagline frames Luthor as an arch-criminal waging a war of science against the Man of Steel, setting the stage for Edmond Hamilton's story "The Six Elements of Crime!" with Al Plastino and Stan Kaye bringing the interior pages to life.