George W. Bacon, Bird's-eye View of Egypt and the Sûdan, scale not given, London, 1884. Size of the original: 63 x 49 cm. Photograph courtesy of the Société de Géographie (BNF, Cartes et Plans SGY F-41).

George W. Bacon, Bird’s-eye View of Egypt and the Sûdan, scale not given, London, 1884. Size of the original: 63 x 49 cm. Photograph courtesy of the Société de Géographie (BNF, Cartes et Plans SGY F-41).