1. IOR/L/MIL/7/2411 Reference (shelfmark): IOR/L/MIL/7/2411 Title: Collection 60/1 Introduction of Bolton's system of Army signalling into India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1863-1872 Extent: 1 file
2. IOR/L/MIL/7/2412 Reference (shelfmark): IOR/L/MIL/7/2412 Title: Collection 60/3 Nance's heliographs: grant of reward to inventor. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1881-1882 Extent: 1 file
3. IOR/L/MIL/7/2413 Reference (shelfmark): IOR/L/MIL/7/2413 Title: Collection 60/4 Adoption by Government of India of cheap mirrors manufactured in India. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1884-1885 Extent: 1 file
4. IOR/L/MIL/7/2414 Reference (shelfmark): IOR/L/MIL/7/2414 Title: Collection 60/5 Reports by Lieutenant Colonel Begbie on comparative advantages of Indian over English mirrors. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1886 Extent: 1 file
5. IOR/L/MIL/7/2415 Reference (shelfmark): IOR/L/MIL/7/2415 Title: Collection 60/6 Trial of apparatus sent home: action deferred pending trial of Begbie's equipment. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1885-1886 Extent: 1 file
6. IOR/L/MIL/7/2416 Reference (shelfmark): IOR/L/MIL/7/2416 Title: Collection 60/7 Set of Begbie's apparatus sent home for trial by War Office. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1886-1887 Extent: 1 file
7. IOR/L/MIL/7/2417 Reference (shelfmark): IOR/L/MIL/7/2417 Title: Collection 60/8 Adoption by Government of India of Begbie apparatus pending decision of War Office. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1887-1888 Extent: 1 file
8. IOR/L/MIL/7/2418 Reference (shelfmark): IOR/L/MIL/7/2418 Title: Collection 60/9 Adoption of Indian-pattern heliographs with alterations and part English equipment. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1889 Extent: 1 file
9. IOR/L/MIL/7/2419 Reference (shelfmark): IOR/L/MIL/7/2419 Title: Collection 60/10 Adoption by Government of India of Begbie BB pattern lamp. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1890-1891 Extent: 1 file
10. IOR/L/MIL/7/2420 Reference (shelfmark): IOR/L/MIL/7/2420 Title: Collection 60/11 Begbie signalling lamp: specimens of the latest pattern for use of War Office. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1898-1899 Extent: 1 file