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Detailed pair of maps which combine to form a double hemisphere map of the World. Limited information along the coast of Antarctica.

From one of the leading American publishers of the period.

O.W. Gray Biography

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.