December 1939 issue ~ cover by H.L. Parkhurst December 1939 cover by H.L. Parkhurst better image than previously posted
January 1942 issue ~ cover art by H.J. Ward January 1942 cover art by H.J. Ward better image than previously posted [cover updated 4/29/26]
November 1938 issue ~ cover art by Emery Clarke November 1938 cover art by Emery Clarke better image than previously posted
May 1940 issue ~ cover art by Rudolph Belarski May 1940 cover art by Rudolph Belarski better image than previously posted [cover updated 10/31/25]
January 1944 Canadian issue January 1944 Canadian issue reprint of the June 1943 US issue with new cover art
