Gorgeous large format example of this mountains and rivers plate, showing the lengths of the principal rivers of the world and heights of the principal mountains. Delineates volcanoes, mountain lakes and other features. Includes names and distances, and identifies continents. Fine example.
O. W. Gray was a publishing firm based in Philadelphia. Later, they published as O. W. Gray & Son. They published atlases in the late nineteenth century. Gray's National Atlas was one of the most successful commercial ventures of the 1870s and one of the last to employ hand coloring on maps.