Cours Élémentaire D'astronomie by Delaunay 1865
This is an astronomy textbook from the Imperial High School of Cahors in France. The title is Cours Élémentaire D'astronomie. It was written by Charles Delaunay and was published in 1865. The book has a large section on clocks and astronomical instruments along with lots of nice diagrams and two folding star charts at the end of the book.