TILHO (Jean). Ministry of Colonies. Scientific documents from the Tilho mission (1906-1909). Paris, Imprimerie nationale, 1910-1911. 2 in-8 paperback volumes, first edition illustrated with numerous engravings and photographic plates, including fold-outs, constituting the first two volumes (a third appeared in 1914) of this fundamental work for knowledge of the Chad and Niger regions. Provenance: Josy Mazodier Library. (rubbing and small tears to covers). Expert: Mr. Nicolas Asvisio