On-sale date from ad in Action Comics #277 and copyright registration.
2nd appearance of the Ugly Superman. 1st appearance in Superman's Girl Friend, Lois Lane (DC, 1958 series) #8 (April 1959).
inspired by the cover of the December 1938 issue of Thrilling Wonder Stories
Letters from Rege Markl, Eddie Tobias, Nancy Gold, Eric Peyton, Dutch Mink, Barry Cushner, Gloria Mundt, Kenneth W. Groman, Neil Carson.