1. IOR/L/PS/12/4200 Reference (shelfmark): IOR/L/PS/12/4200 Title: Coll 36/29 Indo-Tibetan frontier: administration of Tawang area and Se La sub-agency Collection Area: India Office Records and Private Papers Languages: English Date Range: 2 Nov 1925-24 Sep 1946 Extent: 1 file