41. IOR/L/PWD/6/1-31 Reference (shelfmark): IOR/L/PWD/6/1-31 Title: Public Works Department (Home) Papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1880-1881 Extent: 31 volumes
42. IOR/L/PWD/6/32-77 Reference (shelfmark): IOR/L/PWD/6/32-77 Title: Public Works Department (India) Papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1880-1881 Extent: 46 volumes
43. IOR/L/PWD/7/1885-1887 Reference (shelfmark): IOR/L/PWD/7/1885-1887 Title: Formation of Telegraph Companies Collection Area: India Office Records and Private Papers Languages: English Date Range: 1868-1871 Extent: 3 volumes
44. 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
45. 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
46. IOR/L/PWD/3/180-181 Reference (shelfmark): IOR/L/PWD/3/180-181 Title: Railway Secretary's Letters from India Collection Area: India Office Records and Private Papers Languages: English Date Range: 1873-1879 Extent: 2 volumes
47. IOR/L/PWD/5/1-11 Reference (shelfmark): IOR/L/PWD/5/1-11 Title: Public Works 'Old Series' (Collections) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1856-1879 Extent: 11 volumes
48. 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
49. IOR/L/PWD/7/1224-1802 Reference (shelfmark): IOR/L/PWD/7/1224-1802 Title: Main Series Collection Area: India Office Records and Private Papers Languages: English Date Range: 1877-1932 Extent: 579 volumes
50. IOR/L/PWD/7/1803-1815 Reference (shelfmark): IOR/L/PWD/7/1803-1815 Title: Political Papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1893-1925 Extent: 13 volumes