JACKSON, WILLIAM HENRY (1843-1942) Group of 21 stereographs from Hayden's U.S. Geological Survey depicting Rocky Mountain scenery. Arch-topped albumen prints, 19 measure 3 1/2x3 inches (8.9x7.6 cm.) and 2 measure 4x3 1/2 inches (10.2x8.9 cm.), all are on the original printed yellow mounts. 1873
