2795924 Pierre Savorgnan de Brazza, French explorer (colour litho) by French School, (20th century); Private Collection; (add.info.: French explorer Pierre Savorgnan de Brazza during his last expedition to the Congo. Savorgnan de Brazza was sent back to the French Congo in 1905 to investigate reports of forced labour and brutality against the native population in the colony. M Savorgnan de Brazza. Le vaillant explorateur au milieu de son escorte pendant son dernier voyage au Congo. Illustration for Le Petit Journal, 19 March 1905.); 穢 Look and Learn.