My favourite radio, but what make and model please?

WHAT IS THIS VERY COOL AND HARD TO FIND VINTAGE CORONADO? (UNMARKED AS TO A MAKER) HEAVILY MARBLED/SWIRLED MULTI COLOR FLECKED AM TUBE RADIO from the late 1930's/early 1940's era. Its a smaller radio measuring just 10.75" X 6.25" X 7".The only two tags I can find give no actual maker's name. The one on the bottom is the circuit diagram, the one inside is the RCA licensing agreement found in most old radios that used their patents. Its condition is very excellent as you can see, for a 70+ year old radio with NO cracks, breaks or chips and not even a hairline that I can find. The bakelite is very unusual and very pretty compared to the more plain examples.

ANY clues will be very much appreciated.
THIS is driving me NUTS! I need to know! PLEASE?