National Geographic : 1930 Feb
A DEVOUT TIBETAN WHIRLS A DOUBLE PRAYER WHEEL The smaller upper wheel, of silver, revolves separately from the lower; but each contains a roll of paper on which is printed the standard formula, "Om mani padme hum." Each time either wheel revolves the Tibetan is credited with a prayer, according to his belief. This man is a Drokwa, or nomad Tibetan. A VENERABLE MOSLEM OFOLD TAOCHOW He belongs to the New Sect,orSin Chiao, that believes inasavior who lives in Old Taochow and whoisknown asJesus orAissa. The sect also believes in reincarnation. These Mohammedans trade exclusively with the Tibetan nomads, selling brass and copper caldrons, pots, kettles, and barley, taking in exchange wool, furs, and musk.