1. IOR/L/PWD/7 Reference (shelfmark): IOR/L/PWD/7 Title: Indo-European Telegraph Department Collection Area: India Office Records and Private Papers Languages: English Date Range: 1865-1931 Extent: 1979 volumes
2. IOR/L/PWD/7/1878-1902 Reference (shelfmark): IOR/L/PWD/7/1878-1902 Title: Miscellenea Collection Area: India Office Records and Private Papers Languages: English Date Range: 1864-1932 Extent: 25 volumes
3. IOR/L/PWD/7/1903-1907 Reference (shelfmark): IOR/L/PWD/7/1903-1907 Title: Joint Purse Minutes and Accounts Collection Area: India Office Records and Private Papers Languages: English Date Range: 1878-1928 Extent: 5 volumes
4. IOR/L/PWD/7/1975-1976 Reference (shelfmark): IOR/L/PWD/7/1975-1976 Title: Imperial Wireless and Telegraph Conference Collection Area: India Office Records and Private Papers Languages: English Date Range: 1928 Extent: 2 volumes
5. IOR/L/PWD/7/1855-1877 Reference (shelfmark): IOR/L/PWD/7/1855-1877 Title: Indo-European Telegraph Department General Orders Collection Area: India Office Records and Private Papers Languages: English Date Range: 1875-1931 Extent: 23 volumes
6. IOR/L/PWD/7/1933-1960 Reference (shelfmark): IOR/L/PWD/7/1933-1960 Title: Notifications: Bureau International des Administrations Telegraphiques/Union Telegraphique, Berne Collection Area: India Office Records and Private Papers Languages: English Date Range: 1903-1930 Extent: 28 volumes
7. IOR/L/PWD/7/1961-1974 Reference (shelfmark): IOR/L/PWD/7/1961-1974 Title: British Engineering Standards Association: Minutes, Papers and Correspondence Collection Area: India Office Records and Private Papers Languages: English Date Range: 1913-1931 Extent: 14 volumes
8. IOR/L/PWD/7/1224-1835 Reference (shelfmark): IOR/L/PWD/7/1224-1835 Title: Indo-European Telegraph Department Files (London Headquarters) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1877-1932 Extent: 612 volumes
9. IOR/L/PWD/7/1978 Reference (shelfmark): IOR/L/PWD/7/1978 Title: Notifications from the Bureau International de l'Union Telegraphique, Berne Collection Area: India Office Records and Private Papers Languages: French Date Range: 1931 Extent: 1 volume
10. IOR/L/PWD/7/1979 Reference (shelfmark): IOR/L/PWD/7/1979 Title: Indo-European Telegraph Department, Traffic Balances Scope & Content: Traffic balances on traffic exchanged with the Eastern Telegraph Company, Eastern Extension Telegraph Company and Indo-European Telegraph Company from 1919/1920 to 1930/1931; and Traffic Account with the Persian Government from 1925 to 1931 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1919-1931 Extent: 1 volume