51. IOR/R/20/B/2503 Reference (shelfmark): IOR/R/20/B/2503 Title: File 11/21 Finance, Income Tax: Protectorate estimates, 1952-1953 Collection Area: India Office Records and Private Papers Languages: English Date Range: Sep 1951-Jan 1954 Extent: 1 file
52. IOR/R/20/B/2511 Reference (shelfmark): IOR/R/20/B/2511 Title: File 11/48 Finance, Income Tax: Loan policy Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1949-Feb 1958 Extent: 1 file
53. IOR/R/20/B/2517 Reference (shelfmark): IOR/R/20/B/2517 Title: File 11/54 Finance, Income Tax: Protectorate estimates, 1956-1957 Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1955-Dec 1957 Extent: 1 file
54. IOR/R/20/B/2525 Reference (shelfmark): IOR/R/20/B/2525 Title: File 11/62 Finance, Income Tax: Protectorate estimates, 1957-1958: general Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1957-Oct 1957 Extent: 1 file
55. IOR/R/20/B/2529 Reference (shelfmark): IOR/R/20/B/2529 Title: File 13/1 V Intelligence: Police Intelligence Summaries Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1955-Feb 1957 Extent: 1 file
56. IOR/R/20/B/2530 Reference (shelfmark): IOR/R/20/B/2530 Title: File 13/1 VI Intelligence: Police Intelligence Reports Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1957-Dec 1957 Extent: 1 file
57. IOR/R/20/B/2540 Reference (shelfmark): IOR/R/20/B/2540 Title: File 13/48 I Intelligence: Radio Monitoring: monitoring reports Collection Area: India Office Records and Private Papers Languages: English Date Range: Jun 1955-Feb 1957 Extent: 1 file
58. IOR/R/20/B/2541 Reference (shelfmark): IOR/R/20/B/2541 Title: File 13/48 II Intelligence: Radio Monitoring: monitoring reports Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1957-Dec 1957 Extent: 1 file
59. IOR/R/20/B/2545 Reference (shelfmark): IOR/R/20/B/2545 Title: File 13/54 I Intelligence: Aden Intelligence Summaries Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1955-Jun 1956 Extent: 1 file
60. IOR/R/20/B/2551 Reference (shelfmark): IOR/R/20/B/2551 Title: File 13/63 Intelligence: Fisheries Dept: Returns, Aden Intelligence Summaries Collection Area: India Office Records and Private Papers Languages: English Date Range: 1954 Extent: 1 file