Map of northern Gold Coast (now Ghana), showing the boundary of the neutral zone as shown on Justus Perthes map, except that the eastern boundary is here drawn as a meridian, and Kieperts map, (1892 edition of the Kolonial Atlas ) The map marks towns, rivers, hills, and roads. Reference table. Photozincographed at Ordnance Survey Office, Southampton, 1897. MS additions: inscribed, The lines drawn on, or to, watersheds are necessarily only approximate. W. E 13:4:97. The map also shows part of present-day Togo.