Centaur, 1939 Series
 
Cover for Keen Komics (Centaur, 1939 series) #1
Cover for Keen Komics (Centaur, 1939 series) #2
Issue 2
September 1939
Add/replace cover
Cover for Keen Komics (Centaur, 1939 series) #3
Issue 3
November 1939
Add/replace cover