O'SULLIVAN, TIMOTHY H. (circa 1840-1882) "Historic Spanish Record of the Conquest, South Side of Inscription Rock, N.M. No. 3." Albumen print, 7 7/8x10 3/4 inches (20x27.3 cm.), on the original two-toned Wheeler Survey mount, with O'Sullivan's printed credit, title, number, and the U.S. Army Corps of Engineers geological survey credit, on mount recto. 1873
