Haute Luapula secteur, Katanga district, Congo State (1906)
Map showing explorations and discoveries to June 1906, [...] Haute Luapula secteur, Katanga district, Congo State, TSGS 2354. Lithogravure of the Tanganyika Concessions (Mr Geo Grey's). Shows copper and tin mines.
The British LibraryGreat Britain. General Staff. Topographical Section.
1908
[London] : [TSGS, War Office]