When Anne Kirby escapes from Elliott Stratton having found the sailor uniform and telescope in his study, she stands on a corner to hail taxi. In the medium closeup there is a high brick wall behind her, on the long shot, the brick wall is only knee height, meaning that the scenes were filmed at different locations.
While in the office, Simon Templar turns and briefly talks to Anne Kirby calling her Jean. The part of Anne being played by Jean Marsh.