Action Comics Vol 1 #393

Escape artist Hairbreadth Holahan displays his skills above the sky of Metropolis. His act is witnessed by Superman who stands ready to save Holahan in case his trick goes wrong. In the meantime underworld thugs figure out that Holahan is actually an ex-con named Mace Larkin. They blackmail him into helping them break out mob boss Stoney Croy out of prison. In reality, Superman and Holahan have switched places with the help of masks and costume changes. Under the guise of Holahan, Superman breaks Croy out of prison and Croy leads Superman back to his secret lair where a collection of wanted thugs have gathered to use a former prison location as their base of operations. Superman rounds up the thieves and Hairbreadth Holahan receives a pardon for helping Superman round up the crooks.