1. IOR/L/PS/11/150, P 1892/1919 Reference (shelfmark): IOR/L/PS/11/150, P 1892/1919 Title: P 1892/1919 Treaties with Russia: reference to Central Asia and the position of Tibet Collection Area: India Office Records and Private Papers Languages: English Date Range: 20 Mar 1919-4 Apr 1919 Extent: 1 file