This proposition is not correct but you got the idea regarding the area ( 1930's ).
Okay I'll give you a clue guy's : it is a "composite" aircraft and it was originally made for a petroleum company ( okay...maybe I've said too much ! )
when I say "composite" it means that the aircraft is made from parts from other aircraft ( sorry maybe my English was wrong about the word "composite" ) the tail for exemple is from a Lockheed Vega.
I don't know what it is (without checking through my library), but I think it's a racing aircraft which looks like anything but a racing aircraft! Built, or raced, for perhaps Texaco, in the early 1930s.