I had a BSA Motor Cycle in the 1970s. In my quest to keep it on the road, I recall meeting an old feller who worked in the prototype department. of the BSA, at GHRd. Can't recall his name now, but what he didn't know about BSA Motor-Cycles wasn't worth knowing. His double garage in Great Barr was an Alladin's cave of restored old bikes. He helped me get mine running at least. Why the heck I never took any photos of my bikes, I shall never know!
Thanks for the memories.
Brum Walker
(Spell-checker doesn't seem to work very well!)