Detrailed map of Australia, colored by provinces. Includes a key showing the counties in each of the provinces. Good detail in the interior.
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.