61. IOR/R/20/B/3464 Reference (shelfmark): IOR/R/20/B/3464 Title: [Kamaran Lazaretto establishment] Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1922-Nov 1923 Extent: 1 file
62. IOR/R/20/B/3477 Reference (shelfmark): IOR/R/20/B/3477 Title: File 53 Telegrams Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1937-Dec 1938 Extent: 1 file
63. IOR/R/20/B/3481 Reference (shelfmark): IOR/R/20/B/3481 Title: Oil exploration, Kamaran Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1954-Dec 1962 Extent: 1 file
64. IOR/R/20/B/3483 Reference (shelfmark): IOR/R/20/B/3483 Title: Register of fines Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1939-Nov 1963 Extent: 1 file
65. IOR/R/20/B/2111-2149 Reference (shelfmark): IOR/R/20/B/2111-2149 Title: Chief Secretary: Most secret files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1955 Extent: 38 files
66. IOR/R/20/B/2340-2376 Reference (shelfmark): IOR/R/20/B/2340-2376 Title: Chief Secretary: Intelligence Summary files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941-1952 Extent: 37 files
67. IOR/R/20/B/2654-2679 Reference (shelfmark): IOR/R/20/B/2654-2679 Title: Chief Secretary: Secret Protectorate files Collection Area: India Office Records and Private Papers Languages: English Date Range: 1944-1955 Extent: 128 files
68. 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
69. 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
70. 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