371. IOR/R/20/B/2680-2683 Reference (shelfmark): IOR/R/20/B/2680-2683 Title: Chief Secretary: Temporary secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1951-1958 Extent: 4 files
372. IOR/R/20/B/2684-2780 Reference (shelfmark): IOR/R/20/B/2684-2780 Title: Chief Secretary: Ordinary files relating to the Eastern Aden Protecorate, Western Aden Protectorate and Kamaran Collection Area: India Office Records and Private Papers Languages: English Date Range: 1957-1964 Extent: 96 files
373. IOR/R/20/B/2781-3382 Reference (shelfmark): IOR/R/20/B/2781-3382 Title: Chief Secretary: Secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1958-1964 Extent: 602 files
374. IOR/R/20/B/3383-3444 Reference (shelfmark): IOR/R/20/B/3383-3444 Title: Chief Secretary: Secret Annexe files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1958-1965 Extent: 62 files
375. IOR/R/20/B/3445-3459 Reference (shelfmark): IOR/R/20/B/3445-3459 Title: Chief Secretary: Ordinary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1960-1965 Extent: 15 files
376. IOR/R/20/B/3460-3487 Reference (shelfmark): IOR/R/20/B/3460-3487 Title: Civil Administrator, Kamaran Island: miscellaneous files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1917-1963 Extent: 28 files
377. IOR/R/20/B/3488-3501 Reference (shelfmark): IOR/R/20/B/3488-3501 Title: Office of the Administrator, Perim: miscellaneous files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1936-1962 Extent: 14 files
378. IOR/R/20/B/3502-3515 Reference (shelfmark): IOR/R/20/B/3502-3515 Title: District Commissioner's Office: miscellaneous files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1942-1956 Extent: 14 files
379. IOR/R/20/B/3516-3519 Reference (shelfmark): IOR/R/20/B/3516-3519 Title: Public Relations and Information Office: Secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1948-1952 Extent: 4 files
380. IOR/R/20/B/3520 (Sub-sub-series) Reference (shelfmark): IOR/R/20/B/3520 (Sub-sub-series) Title: Public Works Department: miscellaneous file Collection Area: India Office Records and Private Papers Languages: English Date Range: 1950-1951 Extent: 1 file