1. IOR/L/E/7/1508, File 3168 Reference (shelfmark): IOR/L/E/7/1508, File 3168 Title: File 3168 Indo-European Telegraph Department - Cost of maintenance of the Tehran-Meshed Telegraph Line Collection Area: India Office Records and Private Papers Languages: English Date Range: 26 Aug 1886-4 Oct 1927 Extent: 1 file