Lost Registration number

[john williams]

I have recently acquired a 1934 Nippy, original registration MJ 2704. The car has come from a probate estate, it has no registration documents, but had a 1965 tax disc on the windscreen. The DVLA will not allow me to claim the original number without proof of chassis number allocation to the car, in the form of old style rf50 registration document or old MOT certificate. I have been in contact with Bedfordshire CC Archive Dept', and they have a record of first registration allocation, but that does not include the chassis number!!! 
So this is a forlone hope that perhaps someone out there may recognise the car, and know of a previous owner from the past