DC Silver Age Classics Detective Comics (DC, 1992)
In the comic that many consider to be the start of the Silver Age, J'onn J'onzz, the Martian Manhunter, makes his initial appearance in "The Strange Experiment of Dr. Erdel." Also included is "If I Were Batman," in which Commissioner Gordon and Bruce Wayne get to 'be' Batman, and a story of Roy Raymond, TV Detective in "The Money That Came to Life!"