1. IOR/L/PS/11/152, P 2647/1919 Reference (shelfmark): IOR/L/PS/11/152, P 2647/1919 Title: P 2647/1919 Tibet: telegraphs; Gyantse-Lhasa line Collection Area: India Office Records and Private Papers Languages: English Date Range: 12 Jun 1918-2 Oct 1925 Extent: 1 file