1966 Lancer paperback original 1966 Lancer paperback original pen name of Lionel White November 29, 2014
1964 Macfadden paperback reissue – cover art by Charles McVicker 1960 Scribner hardcover 1964 Macfadden paperback reissue cover art by Charles McVicker November 14, 2014
October 1942 issue ~ cover art by Rafael DeSoto October 1942 cover art by Rafael DeSoto Canadian January 1943 issue [post updated 10/19/26]
1966 Fawcett reissue ~ cover art by Robert McGinnis 1966 Fawcett reissue cover art by Robert McGinnis November 15, 2014