Inscribed in pencil, "A Navaho Pony painted at Keams Canyon Arizona, Navaho Reservation done by W.R. Leigh Keams Canyon, Arizona summer of 1915 in July." on verso; Inscribed in type, "8. A mouse-gray Navaho pony with white man's saddle. The Navaho knows little of the proper treatment of horses; this one's neck shows the effect of continual jerking upon the bridle. These horses (cayuse type) are derived from the Arab stock brought from North Africa by the Spaniards."; Inscribed in pencil, "p 40 Pony Book" on verso