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ID: 253604
Map of Iren Dabasu, Pang Kiang, and Shara Murua Triangle, Eastern Mongolia, 1921-1930
ID: 253603
Geological map of Third Asiatic Expedition, Central Mongolia, 1922-1923
ID: 253602
Map of Sainoin Han, Hangayn Mountain range, Mongolia, 1922
ID: 251828
Page from field notebook, Baron Khara, porphyry ridge, and lava-capped mesa, Oshih, Mongolia, 1923