WW2 Frederick Blakeslee Original Oil air fiction pulp Battle Birds Feb 1942-first issue after Pearl Harbor

Frederick Blakeslee Original Oil Battle Birds air fiction pulp Feb 1942-first issue after Pearl Harbor. The back of the painting has an unfinished Blakeslee.  The art work is signed lower left.  I purchased this from John Pederson Jr.'s estate where the paintings were being sold by Trail County Arts Coalition in Hillsboro, ND where John Pederson was from.   John was a military draftsman turned commerical illustrator similar to Frederick Blakeslee.   John and Fred likely knew each other.