1. IOR/L/MIL/7/1111-1125 Reference (shelfmark): IOR/L/MIL/7/1111-1125 Title: Collection 16 Position and range finders: designs etc. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1882-1924 Extent: 15 files
2. IOR/L/MIL/7/1123 Reference (shelfmark): IOR/L/MIL/7/1123 Title: Collection 16/13 Watkin depression range finder. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1895-1898 Extent: 1 file
3. IOR/L/MIL/7/1124 Reference (shelfmark): IOR/L/MIL/7/1124 Title: Collection 16/14 Mekometers for cavalry regiments. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1899 Extent: 1 file
4. IOR/L/MIL/7/1121 Reference (shelfmark): IOR/L/MIL/7/1121 Title: Collection 16/11 Watkin range finder: adoption for infantry and cavalry. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1890 Extent: 1 file
5. IOR/L/MIL/7/1122 Reference (shelfmark): IOR/L/MIL/7/1122 Title: Collection 16/12 Watkin range finder (Mekometer): trial with mountain batteries. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1889-1892 Extent: 1 file
6. IOR/L/MIL/7/1112 Reference (shelfmark): IOR/L/MIL/7/1112 Title: Collection 16/2 Trial and rejection of Bolton range finder. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1882-1884 Extent: 1 file
7. IOR/L/MIL/7/1118 Reference (shelfmark): IOR/L/MIL/7/1118 Title: Collection 16/8 Weldon range finder: suspension of supply after further trial. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1888 Extent: 1 file
8. IOR/L/MIL/7/1117 Reference (shelfmark): IOR/L/MIL/7/1117 Title: Collection 16/7 Weldon range finder: issue to British regiments in India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887 Extent: 1 file
9. IOR/L/MIL/7/1119 Reference (shelfmark): IOR/L/MIL/7/1119 Title: Collection 16/9 Major Walford's depression range finder for coast batteries. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887 Extent: 1 file
10. IOR/L/MIL/7/1114 Reference (shelfmark): IOR/L/MIL/7/1114 Title: Collection 16/4 Lieutenant Colonel Weldon's furlough to count as pensionable service . Collection Area: India Office Records and Private Papers Languages: English Date Range: 1881-1882 Extent: 1 file