1. IOR/R/20/C/1-9 Reference (shelfmark): IOR/R/20/C/1-9 Title: Secret papers on security: intelligence reports Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930-1935 Extent: 9 files
2. IOR/R/20/C/10-1247 Reference (shelfmark): IOR/R/20/C/10-1247 Title: Ordinary, secret and confidential files relating to the Aden Protectorate, Kamaran island and foreign affaires Collection Area: India Office Records and Private Papers Languages: English Date Range: 1938-1940 Extent: 1240 files
3. IOR/R/20/C/1248-1266 Reference (shelfmark): IOR/R/20/C/1248-1266 Title: Miscellaneous records of the Protectorate administration Collection Area: India Office Records and Private Papers Languages: English Date Range: 1922-1967 Extent: 19 files