Hello everyone,
Firstly, I would like to thank you all for your help with identifying this machine. I have taken some pictures, but they are too large a file size to download onto this site.
Jan, I have looked at the engine and there is no arrow, only the letter D and the numbers.
Rich, thank you especially. I have e-mailed Ron (and sent him one of the photos. I wish I could get them on here, as I am sure that this would help the experts.
I am still hoping that there may be preserved records prior to DVLA, and have been encouraged by the London registration. This, however, now begs the question of how the first owner was a man who I believed never left Scotland in his life!!
I don't suppose that I will ever have all the answers, but I do hope that someone can shed some more light on the history.
Best regards,
Nigel