Please, please tell me that the logbook has survived? I always find id rather sad when you have to go down the route of age related plate but....there is a chance;
KENTKent History & Library Centre, James Whatman Way, Maidstone, ME14 1LQ (03000 41 31 31) Email: firstname.lastname@example.org Open Monday to Saturday.Registers 1904-1974 (Note KN 4488-92 are omitted from the KN register). GIM register D-G 1-1199; HMC registers 1905-20; TP registers (KT and KE) 1923-34; Registers of imported vehicles.
Many of the old archive records are in a word CRAP! One of my bikes which luckily was known to the DVLA still retained the original 20's logbook but Dad bought it because we were looking for a vintage bike with a local number. When I approached the records office (it is shown that they have these registers) we were told that they had been lost in a fire so instead I was send a copy from the cancelation book....our bike is in it; taken off the road in 1935. All it shows is reg number, type of vehicle and who had it. Later records from the three letter sequence that survive include the date but zilch about what the vehicle is!
Anyone wishing to try and trace a registration mark head here; Kithead Trust | Educational charity set up to collect and preserve material from the transport industries who have a complete list of what survives and where.