[Yosemite Valley] Sentinel Rock, 3,069 ft. Mammoth plate albumen photograph. San Francisco: Taber Photo, n.d. [1880s]. 52.5 x 40 cm (15 3/4 x 10 3/4 inches). Title, Taber imprint, and stock number (913) in the negative strip along the bottom edge. Some fading and yellowing to image, mount trimmed at left edge; very good. Now professionally matted and framed. (#165128).