British Naval Operations in Home Waters 1914-1918. Prepared in the Hydrographic Department of the Admiralty by Commander Ivor Mackenzie R.N for the Imperial War Museum 1920.

Scale: circa 1:5,500,000 (lat). Photographic reproduction of a chart showing the North-East Atlantic from Norway to France, including the British Isles. First World War naval actions indicated. Reproduction made up from smaller photographs.