1573985 Telegraphic Operating Room, 1896; (add.info.: Photograph taken of a telegraphic operating room at the General Post Office in London. The number of telegraphic messages transmitted from the various London offices in the years 1895-96 was 27,025,193, and the total for the United Kingdom, 78,839,610. As many as six messages three in each direction are now transmitted along a single wire at the same time. Dated 1896, London.); Universal History Archive/UIG; out of copyright.