After a bunch of researching…it IS a Rafael DeSoto!
Black Mask magazine, vol.25 #7, December 1942.
In my mind, the pulp crime/adventure artist Mount Rushmore is a simple thing, Walter Baumhofer, Rudolph Belarski, Norman Saunders and mister *Shadow* himself, Rafael DeSoto.
There is one other fun thing about this issue, Flash Casey, better known to old time radio listeners as Casey, Crime Photographer.
More new pulps to come. #mypulpfinds