in Superman (DC, 1939 series) #187 (June 1966)
in 80 Page Giant (DC, 1964 series) #G23 (June 1966)
in Superman: The Man of Tomorrow Archives (DC, 2004 series) #1 ([September] 2004)
in Showcase Presents Superman (DC, 2005 series) #1 ([September] 2005)
in Superman (DC, 1939 series) #187 (June 1966)
in 80 Page Giant (DC, 1964 series) #G23 (June 1966)
in Superman: The Man of Tomorrow Archives (DC, 2004 series) #1 ([September] 2004)
in Showcase Presents Superman (DC, 2005 series) #1 ([September] 2005)
in Gigant (Centerförlaget, 1963 series) #1/1965First appearance of the Undersea Fortress of Solitude.
Inks previously credited to Stan Kaye, but most likely not him. Probably John Giunta? Credits changed 12/06 by Bob Hughes, per Christopher Melchert. Carl Gafford suggests, via the GCD Error Tracker (Error 3693, 17 April 2010) that John Forte may be the inker, however, Bob Hughes points out (15 February 2011) that Forte didn't start inking Swan until 1960.
published in cooperation with the National Social Welfare Assembly
membership application form for the Supermen of America; also includes message in secret code (Code Krypton No. 9)
decoded message reads: "You don't have to have an iron will to observe the Golden Rule, says the Man of Steel."
jokes