March 1930 issue ~ cover art by Sidney Riesenberg March 1930 cover art by Sidney Riesenberg better image than previously posted
July 1939 issue ~ cover art by H.L. Parkhurst July 1939 cover art by H.L. Parkhurst better image than previously posted
1959 Dell reissue – cover art by Robert McGinnis 1959 1952 Morrow hardcover Cover art by Robert McGinnis 13th with private eyes Bertha Cool and Donald Lam
1966 20th Century Fox – artwork by Bob Peak 1966 20th Century Fox – One Sheet 27x 41″ artwork by Bob Peak
April 1936 issue ~ cover art by Malvin Singer April 1936 cover art by Malvin Singer 1st of only two issue printed better image than previously posted
March 1934 issue ~ cover art by Fred Craft March 1934 cover art by Fred Craft better image than previously posted
October 1937 issue ~ cover art by Tom Lovell October 1937 cover art by Tom Lovell better image than previously posted