21. IOR/L/MIL/7/1621 Reference (shelfmark): IOR/L/MIL/7/1621 Title: Collection 38/21 Commander Beauchamp R.I.M. appointed as surveyor-in-charge. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906-1909 Extent: 1 file
22. IOR/L/MIL/7/1622 Reference (shelfmark): IOR/L/MIL/7/1622 Title: Collection 38/22 Commander Hickman R.I.M. appointed as surveyor-in-charge. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1910-1914 Extent: 1 file
23. IOR/L/MIL/7/1623 Reference (shelfmark): IOR/L/MIL/7/1623 Title: Collection 38/24 Revised rules for administration of Indian Marine Survey Department. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1913 Extent: 1 file