LSE4332313 Dr. Nachtigal saves a exhausted young slave, whom the slave merchant would soon abandon on the side of the road after having copiously whipped her, engraved after a drawing by Yvan Pranishnikoff, to illustrate the story Voyage du Bornou au Baguirmi (Chad), by Dr. Gustave Nachtigal (1834-1885), 72, published around the world, under the direction of Edouard Charton, 1880, Paris. Selva Collection. by Pranishnikoff, Ivan (1841-1909); Private Collection; (add.info.: Dr. Nachtigal saves a exhausted young slave, whom the slave merchant would soon abandon on the side of the road after having copiously whipped her, engraved after a drawing by Yvan Pranishnikoff, to illustrate the story Voyage du Bornou au Baguirmi (Chad), by Dr. Gustave Nachtigal (1834-1885), 72, published around the world, under the direction of Edouard Charton, 1880, Paris. Selva Collection.); Photo by Leonard de Selva.