It depends on which end cover is fitted to your gearbox. It looks from your picture that you have a hand change box that has a foot change adapter bolted on, in which case the number will be on a flat area just above the kick start boss. Any letters will refer to the gear ratios ie CM – close medium, W – wide, C – close.  Gearboxes with the gear change housing cast into the end cover will have the number stamped on the flat circular area that houses the main shaft bearing just behind the foot rest.

1946 models according to the brochure were fitted with 8” full width rear hubs and with twin 6” full width front hubs. My Brampton forks are fitted with the twin full width hub.

It’s probable that the factory fitted what ever was available, as many parts and materials were not available during the early post war period, so nothing can be ruled out!

Dave

The exhaust pipe was/is prone to rusting at that junction if the chrome plating was poor. The repositioning probably indicates the nearest place that they could find sound metal to weld to!

Dave

Apologies for telling you what you already knew

That’s fine Keith, I don’t take offence at all easily, I wasn’t grumpy just a bit embarrassed to have been too basic to  someone who knew what they were doing. let’s hope it’s something straightforward, will look foreword to hearing more

The rear brake plate is correct but I’ve never seen an aluminium single front brake plate on a Scott. I doubt that it was fitted by the factory.