Action Comics #278

From 1961 comes this wonderfully offbeat Superman adventure featuring one of the most unexpected cover scenarios in the run — Perry White, the Daily Planet's no-nonsense editor, has somehow become an invulnerable super-villain calling himself the Master-Man. Curt Swan and Stan Kaye's cover captures Superman bewildered and crouching defensively as a costumed Perry deflects a statue bearing his own likeness, their speech bubbles spelling out the heartbreak of a friendship turned to rivalry. "The Super-Powers of Perry White!" promises a story that turns the familiar Daily Planet dynamic on its head, and a bonus Supergirl adventure rounds out this thoroughly entertaining package.