F.W. 4 (Old Chain Battery Walk), West Point, New York
image: 14.61 x 19.69 cm (5 3/4 x 7 3/4 in.)  sheet: 14.61 x 19.69 cm (5 3/4 x 7 3/4 in.)  mount: 25.4 x 33.5 cm (10 x 13 3/16 in.)