A typical object for Tibetans is a travelling-set for boiling tea. You carry it with you when out in the fields, hiking to the upland pastures, or with the animals out in the mountains. From the worn and greased leather bag is taken an aluminium water-pot, to be put on the fire of twigs and yak dung. Roughly-pounded brick-tea is in one bag, roasted barley flour, tsampa, in another, slightly rancid yak butter in a small wooden box. In the pot is boiled a hot tea, lightly reminiscent of broth.
The Tebbu Tibetans live in the long valleys north and south of the Yangtze River's northernmost tributary, Bailong Jiang. In 1930, David Hummel was able to take himself up to their remote villages. With the help of the Swedish American missionary Edvin Carlson, he was able to acquire more than two hundred artefacts. They present a unique collection of Tebbu Tibetan material culture.
In 1991 and 1997, the museum's Asian curator visited the Drakana Valley, partly to study the Tebbu Tibetan's social system, partly to complete the collection David Hummel had made.