My thoughts: The advertisement for the sliding window Isetta dates the picture 1958 - 1964 (unless this was an old advert at the time). The bikes or cars listed in the window are Mobylette, (illegible), NSU, Paloma, (illegible), Heinkel, Bond, ISO, Velocette, Binetta, Excelsior, Frisky, Panther. I assume the bikes on display are new as there aren't many plates visible, but timing would be more difficult if the bikes were second hand. I note the comments regarding the bikes as many of you know more about these than I do. I can't see a badge on the Heinkel / Trojan.
The posting on the right for the Sunday Dispatch shows Robert Boothby, Baron Boothby, a shady character who was educated at Eton and Magdalen College, Oxford. He married twice and was said to have fathered at least three children by the wives of two other men. One of these wives was Dorothy Macmillan whose husband Harold Macmillan later became prime minister. Boothby also befriended the Kray twins. In spite of his chequered history Queen Elizabeth The Queen Mother described him 'a bounder but not a cad'. Boothby's underworld connections were well known to many journalists, but in those days they kept quiet. Eventually in 1964 the story couldn't be contained any longer. Hence my thoughts about the date of the photograph. But apparently Boothby was a commentator on public affairs for many years prior to the scandal so if 20thcenturyimages date this photograph as 1960, I think we can agree on that.