1. 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
2. IOR/R/20/C/1945 Reference (shelfmark): IOR/R/20/C/1945 Title: File TSR/270 Intelligence staff Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1956-Oct 1966 Extent: 1 file
3. IOR/R/20/C/1941 Reference (shelfmark): IOR/R/20/C/1941 Title: File TSR/85 Intelligence: Yemeni intelligence Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1960-Aug 1964 Extent: 1 file
4. IOR/R/20/C/1944 Reference (shelfmark): IOR/R/20/C/1944 Title: File TSR/220/IV Intelligence: general Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1963-Dec 1966 Extent: 1 file
5. IOR/R/20/C/1946 Reference (shelfmark): IOR/R/20/C/1946 Title: File TSR/344 Security: British families Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1961-Nov 1965 Extent: 1 file
6. IOR/R/20/C/1947 Reference (shelfmark): IOR/R/20/C/1947 Title: File TSR/403 Miscellaneous development resources Collection Area: India Office Records and Private Papers Languages: English Date Range: Jul 1950-Apr 1965 Extent: 1 file
7. IOR/R/20/C/1934 Reference (shelfmark): IOR/R/20/C/1934 Title: File TSR/14/III EAP/Yemen affairs Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1963-Aug 1965 Extent: 1 file
8. IOR/R/20/C/1939 Reference (shelfmark): IOR/R/20/C/1939 Title: File TSR/82/D Intelligence: Shanfari Association Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1960-May 1966 Extent: 1 file
9. IOR/R/20/C/1940 Reference (shelfmark): IOR/R/20/C/1940 Title: File TSR/84 Intelligence: Saudi Intelligence Frontier Posts Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1960-Dec 1960 Extent: 1 file
10. IOR/R/20/C/1952 Reference (shelfmark): IOR/R/20/C/1952 Title: File TSR/432 Anti-terrorist sedition measures Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1966-Sep 1966 Extent: 1 file