Smith, Keith Macpherson, Sir, 1914-1918, Photograph, PRG 18/5/17
View of mounted cavlary escorting a royal parade and carriage carrying members of the British royal family, taken from the balcony of a Royal Air Force building on Piccadilly, London. Princess Mary can be seen through the window of the carriage, nearest the camera. Crowds are gathered on either side of the road to view the parade.