Superboy #109

A dog's jealousy takes center stage on this December 1963 cover, where Superboy soars through the air alongside a caped white super-dog wearing a tiny "S" shield — while a second, very disgruntled Krypto strains against a glowing green Kryptonite leash below, muttering that this "double-crossing super-pooch" has stolen his master and become "top dog of the universe." The cover copy promises the featured story is "The Super-Dog That Replaced Krypto!" — a setup full of canine rivalry and cosmic stakes that Curt Swan and Sheldon Moldoff render with their characteristic warmth and clean dynamism. Jerry Siegel and George Papp round out the creative team inside, making this a confident, charming entry in DC's early 1960s run of Superboy adventures.