having seen it at the auction the furness+searle connection is likely, it had been restored to concours condition.
Plenty of Victor transfers at the club shop
Cromer in Norfolk is over 100 miles from Stevenage I cant remember where F&S were but I think I would have remembered Cromer.
I seem to remember that there were 2 Victors one was with Pete Busby from the Oxford Section who emigrated to the IOM back in the 60's
Cromer, Hertfordshire,Near Walkern, Near Stevenage, Series A and Sidecar Rally, not Cromer, Norfolk. Mind you, nice crabs from there I believe.
according to bonhams catalogue blurb " reg no mnr 956 frame rd 12538 engine f5ab/3a/10638" has v o c cetificate of authenticity! perhaps we should invite a response from "Mr authenticity".