Carte de l'Afrique de l'Ouest à 1/500 000 /
Institut géographique national (France)
French West Africa.Service géographique.
Paris ; Dakar : Institut géographique national,
1940-1969.
Relief shown by contours, form lines and spot heights.
Some earlier sheets have title: Afrique occidentale, and are issued by the Service géographique de l'A.O.
Sheets of various eds.
Some sheets include index to adjoining sheets, administrative area diagram, references, and alphabetical index of place names.
Graphic index in central file.