1. IOR/L/MIL/7/9271 Reference (shelfmark): IOR/L/MIL/7/9271 Title: Collection 209/1 Construction of experimental 6.3-inch jointed howitzer for trial in India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1881-1886 Extent: 1 file
2. IOR/L/MIL/7/9272 Reference (shelfmark): IOR/L/MIL/7/9272 Title: Collection 209/2 Supply of 4 6-inch jointed howitzers by Messrs Armstrong and Co. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1885-1889 Extent: 1 file
3. IOR/L/MIL/7/9273 Reference (shelfmark): IOR/L/MIL/7/9273 Title: Collection 209/3 Ordnance Committee minutes on 6-inch jointed howitzer. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1886-1887 Extent: 1 file
4. IOR/L/MIL/7/9274 Reference (shelfmark): IOR/L/MIL/7/9274 Title: Collection 209/4 Supply of 4 4-inch jointed guns by Messrs Armstrong and Co. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1886-1890 Extent: 1 file
5. IOR/L/MIL/7/9275 Reference (shelfmark): IOR/L/MIL/7/9275 Title: Collection 209/5 Ordnance Committee minutes on 4-inch jointed gun. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887 Extent: 1 file