Would a Mosquito with a bomber nose (ie with a bomb aimer’s window) be fitted with machine guns anyway? I would have thought that the breeches would have been in the way of the bombsight? I’m guessing it was done for a film of some sort… Given that apparently 633 Squadron was 1964, and I think the B&W Diana Rigg series was filmed in 1965-6, maybe that’s the likely reason?

Adrian