21. IOR/L/PWD/3/545-546 Reference (shelfmark): IOR/L/PWD/3/545-546 Title: Railway Despatches to Madras (Copies) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1854-1858 Extent: 2 volumes
22. IOR/L/PWD/3/583-585 Reference (shelfmark): IOR/L/PWD/3/583-585 Title: Railway Despatches to Bombay (Copies) Collection Area: India Office Records and Private Papers Languages: English Date Range: 1854-1879 Extent: 3 volumes
23. 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
24. 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
25. IOR/L/PWD/6/78-1189 Reference (shelfmark): IOR/L/PWD/6/78-1189 Title: Public Works Department Papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1882-1926 Extent: 1112 volumes
26. IOR/L/PWD/7/1878-1884 Reference (shelfmark): IOR/L/PWD/7/1878-1884 Title: Conventions, agreements etc Collection Area: India Office Records and Private Papers Languages: English Date Range: 1864-1916 Extent: 7 volumes
27. IOR/L/PWD/7/1888-1892 Reference (shelfmark): IOR/L/PWD/7/1888-1892 Title: Tariffs, rates, royalties Collection Area: India Office Records and Private Papers Languages: English Date Range: 1871-1902 Extent: 5 volumes
28. IOR/L/PWD/5/24 Reference (shelfmark): IOR/L/PWD/5/24 Title: Parliamentary returns on Indian railways Collection Area: India Office Records and Private Papers Languages: English Date Range: 1845-1861 Extent: 1 volume
29. IOR/L/PWD/5/26 Reference (shelfmark): IOR/L/PWD/5/26 Title: Miscellaneous papers on Indian railways Collection Area: India Office Records and Private Papers Languages: English Date Range: 1866-1882 Extent: 1 volume
30. 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