“Wearing traditional dress and headgear, a Turkmen camel driver poses with his camel, laden with what is most likely grain or cotton. Camel caravans remained the most common means of transporting food, raw materials, and manufactured goods in Central Asia well into the railroad era.”
Trade between Russia and China flourished along the silk road with a plethora of goods being bartered. Items such as woollens (often used to make cloaks or traveling dresses) and the lighter furs of squirrels and lambs as well as reindeer horns were in high demand by the Chinese. In return the Russians mostly imported tea, silk, and cotton in addition to sugar-candy in smaller quantities. Goods were often carried by camels or oxen, and these trips could take several months.The trade most often occurred between the cities of Kiakhta and Kalgan.
Permanent Record: http://www.loc.gov/pictures/item/prk2000002574/
Cited Sources: Harry Parkes. Journal of the Royal Geographical Society of London , Vol. 24, (1854), pp. 306-312. http://www.jstor.org/stable/3698123