A General Map of the River Sanaga or Senegal from the Falls of Govina to the Ocean; taken by a French Engineer in 1718, and drawn by the Sr. d'Anville, from particular Draughts Published by Labat. Map removed from an unidentified 18th century travel book, ca. 1750.  About 9.75" x 18", folded. A bit worn on the edges, but very good..