'Sketch Map (Plane Table) of Country from "Ngabotok to the Nakwai Hills", Shewing Route followed by Expedition - Jan. & Feb. 1913.' Signed by 'G.P.L. Cosens Lt. The Royal Dragoons.'
Scope & Content:
Indicates hydrology and vegetation, with brief descriptions of topography and some indication of relief. Includes bearings taken to high points
'Plane Table Sheets - 2 sheets' - War Office ledger
Scope & Content:
Shows an area stretching from the south-east to the north-west of the Aberdare Range in southern central East Africa Protectorate, recording angles of observation, and with some indication of relief