Registered 13/6/1951 as NMN410
first taxed on the island 26/9/1951 as I have the tax records
Unfortunately tax records don’t record the chassis number

I can ask if the guy can look yours up next time he is at the records.
Do you only have a registration and not the full car?

That would be great if he could

I have the full car it’s just not UK registered it’s still wearing its IoM plate that ceased in 1971 when it returned to the Uk and was left in a shed until I purchased the car in 2011 and it’s still being restored and I would like to get its original number from Glasgow back. Where it was first registered before going to the island.