Issue: #323
Last valuation update: 2026-10-22
Story 1: "The Eight Impossible Missions!" Proty II comes up with a contest to determine the next Legion leader. Story 2: "How Krypto Made History!" Krypto travels through time.
First appearances: Spider-Girl, Trix Rabbit, Double-Header
Creators: George Papp, Jerry Siegel, George Klein, Curt Swan, Joe Letterese, John Forte, Otto Binder, Ira Schnapp, Mort Weisinger
Characters: Superman, King Arthur, Babe Ruth, Jimmy Olsen, Brainiac 5, Chameleon Boy, Colossal Boy, Krypto, Sun Boy, Element Lad, Saturn Girl, Ultra Boy, Duplicate Girl, Phantom Girl, Invisible Kid, Spider-Girl, Shrinking Violet, Lightning Lass, George Washington, Rocky