1. IOR/L/PS/11/58, P 2786/1913 Reference (shelfmark): IOR/L/PS/11/58, P 2786/1913 Title: P 2786/1913 North-East Frontier: Dibong survey; programme completed Collection Area: India Office Records and Private Papers Languages: English Date Range: 9 Jun 1913 Extent: 1 file