381. IOR/R/20/B/3521-3530 Reference (shelfmark): IOR/R/20/B/3521-3530 Title: Financial Secretary's Office: Finance and Development files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1958-1962 Extent: 10 files
382. 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
383. 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
384. 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
385. IOR/R/20/C/1267-1752 Reference (shelfmark): IOR/R/20/C/1267-1752 Title: Ordinary and confidential files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937-1966 Extent: 486 files
386. IOR/R/20/C/1753-1933 Reference (shelfmark): IOR/R/20/C/1753-1933 Title: Secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937-1966 Extent: 181 files
387. IOR/R/20/C/1934-1953 Reference (shelfmark): IOR/R/20/C/1934-1953 Title: Top secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1950-1967 Extent: 18 files
388. IOR/R/20/C/1954-2039 Reference (shelfmark): IOR/R/20/C/1954-2039 Title: Mukalla Residency: miscellaneous records Collection Area: India Office Records and Private Papers Languages: English Date Range: 1919-1965 Extent: 94 files
389. IOR/R/20/C/2040-2049 Reference (shelfmark): IOR/R/20/C/2040-2049 Title: Ordinary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1940-1948 Extent: 10 files
390. IOR/R/20/C/2050-2059 Reference (shelfmark): IOR/R/20/C/2050-2059 Title: Confidential and secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1955-1963 Extent: 10 files