Thank you for a very complete and informative answer. I have only the information that it's a 1928 model, but I reckon the size of it means it's one of the larger 10cv models.
It's a marque which entered the Le Mans 24 -hours in period, which is how I found it. I decided that this was the best photo, but as you suggest, we cannot be sure exactly what it is.
The point is yours.