Action Comics (vol. 1) #599

"Element 126" What do the Metal Men have to do with Luthor's newly created Kryptonoid Man? Story & figure inks by John Byrne, pencils by Ross Andru, background inks by Keith Williams. Bonus 16-page tale: Superman & Jimmy Olsen in "The Karma Baggers" by Joe Calchi, Britt Wisenbaker & James Scott. Cover by Byrne. 52 Pages, Full Color, $0.75. Cover price $0.75.