updated – Page 25

April 1936 issue ~ cover art by Rafael DeSoto

cover art by Rafael DeSoto

better image than previously posted

[cover updated 4/30/26]

cover art by Norman Saunders

[updated 4/29/25]

[updated 11/1/24]

January 1935 – premiere issue

cover art by George Gross

[image updated 6/29/24]

cover art by Rudolph Belarski

cover art repurposed for 1950 Popular Library edition of the John Spain novel

open name of Cleve F. Adams, last of three books as by Spain

1944 Dutton hardcover

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[post updated 5/6/25]

cover art attributed to Rudolph Belarski

[post updated 11/7/24]

cover art by H.J. Ward

better image than previously posted

[cover updated 4/29/26]

cover art by Rudolph Belarski

better image than previously posted

[cover updated 10/31/25]

cover art by Emery Clarke

better image than previously posted

[image updated 2/15/25, 4/30/26]

cover art by R. James Stuart

[cover updated 2/5/26]