A similar car to yours exists in England owned by a member of the TOC, perhaps I could try and put you in contact with him, his name is Mick Polka,
Micks car is a 1939, restoration images are online https://www.flickr.com/photos/mick_popka/albums/72157629091651700 which may, or may not help. There is another album about the car on the same server
David Faulkner