1. File 3414/1906 Pt 5 'Telegraphs:- N. Persia. Tehran-Khanikan line; Tehran-Shahrud line; I. E. Tel. Dept's undertakings in N. Persia' Date: 1906/1911 Language: English Geographic region: KhanikinTehranShahrud
2. File 80/1913 Pt 2 'Persia: Telegraphs' Date: 1919/1924 Language: English Geographic region: MeshedSeistan
3. File 80/1913 Pt 1 'Arabistan: telegraph line' Date: 1912/1919 Language: English Geographic region: Bander RigBorasjun