1. IOR/L/PS/12/1590 Reference (shelfmark): IOR/L/PS/12/1590 Title: Coll 3/37 Perso-Afghan (Seistan) frontier; Boundary Commission 1872; dispute re Seistan water supply; Hashtadan demarcation; Sir J Benton's Irrigation Scheme Collection Area: India Office Records and Private Papers Languages: English Date Range: 15 Feb 1923-30 Jun 1948 Extent: 1 file