Map shows: international, provincial, Nigeria-Cameroons, divisional, and district boundaries; customs stations; three classes of roads; railways; lighthouses; telegraph lines; wireless stations; native courts. The Trustee Territories administered as part of Bornu, Adamawa, Benue, and Eastern Region are shown by color code. The territory of the Cameroons under the United KIngdom trusteeship consisted of two mountainous strips on the eastern frontier of Nigeria, extending from Lake Chad to the Atlantic Ocean. It is divided by a strech of approximately 45 miles into north and south by the Benue River. "1850/17/3-54" Original map is filed in the Map/Geospatial Center, a map reproduction are attached to companion volume.