Great drawings and photos Simon.
My dad was a coachbuilder and did some good stuff. Renovated a Hansom cab (horse drawn taxi). Rebuilt a Morgan, built a recovery truck, many caravans, beach buggies,looked after several cars for locals (Bristol, Jenson, Jags, RR, local funeral director vehicles).
I have a small book from my early years with details of many cars from the pre-war era. It is similar to the “Observer Book of...” series in size. I also have a line drawing of a Moss box Plus8 found on ebay. I have scans of it in A4 size and, I think original A3) if anyone wants one. I’ll try getting it onto the Image site to post.
Keeping old archive stuff is too often overlooked.