Rosamunde Pilcher - Schneesturm im Frühling
1964 BSA Something 500. DVLA details for BTO 940B are: Date of First Registration 10 07 1964 Year of Manufacture 1964 Cylinder Capacity (cc) 500cc CO₂ Emissions Not Available Fuel Type PETROL Export Marker N Vehicle Status SORN in place Vehicle Colour BLACK Vehicle Type Approval Not Available
rear "handle lifter" suggest a rear girder suspension so could be A7 but till produced in 1964?
no better match lass than a 1967 Norton P11 750cc Scrambler http://www.nortonownersclub.org/models/hybrid/hybrid-images/0096.jpg which actually is a hybrid of vroom vroom Norton Atlas twin put in Matchless G85 frame by US company Rickman brothers ZDS Motorcycles of Glendale http://www.earlyyearsofmx.com/Norton750Scrambler1967.html http://www.nortonownersclub.org/models/hybrid some 2500 built of predecessor indeed moto cross modified to be more street legal