1. IOR/L/PS/11/175, P 5856/1920 Reference (shelfmark): IOR/L/PS/11/175, P 5856/1920 Title: P 5856/1920 Sino-Tibetan Frontier: report from British Consular Officer at Tachien-lu Collection Area: India Office Records and Private Papers Languages: English Date Range: 9 May 1920-1 Sep 1920 Extent: 1 file