INDEXES TO MAPS IN THE CLASS > Photocopies of Diagrams of Africa bound into the Catalogue of Maps, 1923, published by the Geographical Section General Staff, War OfficeWO 300/11923
CONTINENT OF AFRICA: Index to GSGS Sheets of Africa on scales of 1:1 000 000 to 1:6 000 000 not belonging to regular series. Diagram no: XI