Hi Robert
I got on to Les Freathy (local modeller and author of several books on trucks) and asked him about the trailer. His answer was not encouraging, but he attached a pic of a water version of our favourite trailer which confirms exactly what you said about the number plate. I attach the pic - note it is from Les and for research only.
I also attach a pic of mine taken at the Beltring show a few years ago, which shows the white plate underneath which I assume is a form of convoy light. Now all I have to do is find (or make) some reflective Ts!
Chris
