Action Comics #254

Luthor steals Professor Dalton's duplicating machine and creates an adult Bizarro to menace Superman, but this Bizarro turns on its creator, hands him over to the authorities, and attempts to help Superman. When the people he has helped react in horror to him, Bizarro gets depressed. He misinterprets Lois' sympathy to his plight for true affection and takes her to a remote island. But when she rejects him, he turns the duplicator ray on himself and creates a handsome bizarro duplicate, whom Lois mistakes for the real Superman.