Two men on yaks in the mountains; the figure on the right, with rifle, is Nadir, a huntsman employed by Sykes. The horns of the "ovis poli," or Marco Polo sheep, are just visible on back of one of the yaks. Appears as an illustration in the book Through Deserts and Oases of Central Persia (1920).
The photograph album, Photographs taken by Lt. Col. Sir Percy Sykes to illustrate Chinese Turkestan, the Russian Pamirs and Osh, April-November, 1915 was received by the David M. Rubenstein Rare Book & Manuscript Library as a purchase in 2018.