January 1934 issue ~ cover art by Clifford Benton January 1934 cover art by Clifford Benton better image than previously posted
January 1935 issue ~ cover art by Rafael DeSoto January 1935 cover art by Rafael DeSoto [cover updated 1/22/26]
June 1934 issue ~ cover art by H.L. Parkhurst June 1934 cover art by H.L. Parkhurst better image than previously posted
November-December 1939 issue ~ cover art by Delos Palmer November-December 1939 cover art by Delos Palmer better image than previously posted
December 1942 issue ~ cover art by Allen Anderson December 1942 final issue before being re-titled Speed Mystery cover art by Allen Anderson better image than previously posted