Inks previously credited to Stan Kaye, but most likely not him. Probably John Giunta, per Christopher Melchert. Carl Gafford suggested via the GCD Error Tracker that John Forte may be the inker, but Bob Hughes points out that Forte didn't start inking Swan until 1960.
First appearance of the Undersea Fortress of Solitude.
published in cooperation with the National Social Welfare Assembly