Fumo di Londra
BSA Bantam OR James with Villiers engine ! I am not sure it is either. The chrome sides on the tank might suggest it is an early Japanese model. '66, not a lot of Japanese in our country(es)
I think this bike is a hybrid. Most of it is 1956 Thunderbird 6T but it has the later style (1958 on) tank badges and front brake. It has had the front part of the nacelle removed but the bit around the handlebars is still there. Link to "www.vintagebike.co.uk"
i think it's either a tiger 110 or thunderbird hi-bred
Not a Bonneville as it is the wrong colour. It is a 1964 Trophy TR6 http://www.aceclassics.co.uk/restoration