There's no way this will be 'split'. I need to get the saddle repaired, but other than that I also still have the CL pedals, and the (as far as I can tell from photos of Dad riding it) the original Bluebells mudguards and pump.
I think, at some time waaaaaay back in the past the bottom bracket was reamed out to take the TDC 'get out of jail' steel threadless cartridge type which was effectively 'clamped' through the BB shell using an 'oversize' RH BB cup and LH locking. There are two grease nipples on the BB, and one on the head tube. The rear fork ends have need slightly 'hacked' as I think someone has tried to fit larger wheels (possibly 700c) and 'eased' the ends off the forkends to get enough clearance to squeeze them in. I believe the bars are Lauterwasser - I met him (Jack) in Bradford on Avon years ago - lovely man, very modest about his achievements.
I know the bike wasn't new when Dad first had it, but it's never been resprayed since. No idea of the original colour scheme though (sadly). Not sure whether I should research a set of period transfers for it or not. It's a beautiful ride, and the pencil stays at the rear and round fork blades are comfortably responsive yet still eat up the bumps and the road miles with ease.
I'll take some more pics later.