Passport issued to first Everest Expedition, 1921. Museum of the Himalayan Mountaineering Institute, Darjeeling
Tibetan government
1921
<a rel="nofollow" class="external free" href="http://www.rangzen.net/rangzen-facts/independent-tibet-the-facts/">http://www.rangzen.net/rangzen-facts/independent-tibet-the-facts/</a>