I was reading an old account by Denis Jenkinson the other day, and he mentioned that he'd stopped at a garage in Albi amd spotted this car which had been built by the garage proprietor, based on a Citroen 15cv. He photographed the car because he was so impressed by the design and engineering involved, but he didn't mention the name of the builder.
I've had a look through all 8 pages of "Citroen" on AP, and couldn't find it, so this could be new to us all. Any ideas?