Action Comics #163

Susan Semple, a receptionist at the Daily Planet, dreams of being romantically involved with Superman. Lois is sent to interview madcap scientist Professor Weirton, but returns denouncing his wild yarn about a cabinet which can change people into super-beings. In desperation, Susan visits him and is subjected to the experimental process. This transforms her into a magnificent mental and physical specimen, and her first aimis to get Superman to marry her.