Hi... further to my last posting. I now own 1966 RDS Silverstone (frame number RDS 133.) I am happy that this is updated on the database. It is be refurbished for parading in the 1000 bikes at Mallory, and CRMC Parades and is in very good original condition (apart from Mikuni carb and PVL type ignition). Regards Pete Parnham (Lincolnshire)