[Carte du Congo au 1:200,000] /
Institut géographique du Congo.
[Léopoldville] : Institut géographique du Congo,
1954-
Relief shown by spot heights.
"Projection U.T.M."
Sheets separately numbered and subtitled, e.g.: N 3/25--Bambesa.
Includes notes and boundary diagram.
Includes: "Index des photographies aeriennes"
Incomplete (9 sheets only held).