OK, I really do not wish to take away from the efforts of Spence and Fabrizio but I have found it after working since about
0130 this morning.
The body maker is, well, almost who you want it to be.
Victor Tual
Tual-Tredion
Tual & Gourmelen
According to the French National Archives, the company traded under all three names and there is also a history book
on the company using the Gourmelen name.
Based on what I found on the internet, I would suggest this car was built when the company was called Tual-Tredion, Tredion being the location of the bodyworks.
I give full credit to Gerd here as his tip about the name being used on AP before gave me my final chance as I had exhausted all of my fairly extensive references to French auto coachmakers.
I went back from today in the solved section of AP, page by page and looked at any and all coachbuilders mentioned that did busses or trucks as I have a very poor data base of such builders. I finally found a possibility on one of Pal's quizzes from about a year ago and several searches using combinations of the names finally gave me the puzzle car.
Now, I wonder who built the 1936 Matford familiale that I posted earlier as these are the only two photos I could find.
I wonder if it is the same car perhaps after the war and repainted?
Edit: I guess I can answer my own question. My car had a boot, the puzzle car does not so it is a different car and still a mystery.
Bill