1. IOR/L/MIL/7/10213 Reference (shelfmark): IOR/L/MIL/7/10213 Title: Collection 238/1 Government telegraph code. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1884-1902 Extent: 1 file
2. IOR/L/MIL/7/10214 Reference (shelfmark): IOR/L/MIL/7/10214 Title: Collection 238/2 Adoption of "Z" cipher code, and Government telegraph code, for India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1901-1908 Extent: 1 file
3. IOR/L/MIL/7/10215 Reference (shelfmark): IOR/L/MIL/7/10215 Title: Collection 238/3 Code addresses for general officers commanding divisions and independent brigades empowered to telegraph persons and places outside India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1908-1909 Extent: 1 file
4. IOR/L/MIL/7/10216 Reference (shelfmark): IOR/L/MIL/7/10216 Title: Collection 238/4 War Office cipher codes. Collection Area: India Office Records and Private Papers Languages: English Date Range: Unspecified Extent: 1 file