21. IOR/R/20/B/3538 Reference (shelfmark): IOR/R/20/B/3538 Title: The Merchant Shipping (Confirmation of Legislation) (Aden) Order Collection Area: India Office Records and Private Papers Languages: English Date Range: 1955 Extent: 1 file
22. IOR/R/20/B/3541 Reference (shelfmark): IOR/R/20/B/3541 Title: Aden Colony Internal Security scheme: 'Operation Anther' Collection Area: India Office Records and Private Papers Languages: English Date Range: 1958 Extent: 1 file
23. IOR/R/20/B/3533 Reference (shelfmark): IOR/R/20/B/3533 Title: Kamaran Radio Station: Memorandum prepared for political talks Collection Area: India Office Records and Private Papers Languages: English Date Range: Aug 1961 Extent: 1 file
24. IOR/R/20/B/3551 Reference (shelfmark): IOR/R/20/B/3551 Title: Official Information Group [media]: minutes of meetings Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1962-Jan 1963 Extent: 1 file
25. IOR/R/20/B/3560 Reference (shelfmark): IOR/R/20/B/3560 Title: San'a medical mission [YEM/4/4/ I] Collection Area: India Office Records and Private Papers Languages: English Date Range: Apr 1942-Dec 1943 Extent: 1 file
26. IOR/R/20/B/3546 Reference (shelfmark): IOR/R/20/B/3546 Title: File FIN/1/5/1 Government Guards: establishment and organisation Collection Area: India Office Records and Private Papers Languages: English Date Range: Apr 1952-Aug 1955 Extent: 1 file
27. IOR/R/20/B/3543 Reference (shelfmark): IOR/R/20/B/3543 Title: Commission to inquire into the disturbances at Shaikh Othman Collection Area: India Office Records and Private Papers Languages: English Date Range: 1941 Extent: 1 file
28. IOR/R/20/B/3571 Reference (shelfmark): IOR/R/20/B/3571 Title: Aden Airways: survey of airfields in the Protectorate [with photographs] Collection Area: India Office Records and Private Papers Languages: English Date Range: May 1962 Extent: 1 file
29. IOR/R/20/B/3532 Reference (shelfmark): IOR/R/20/B/3532 Title: Future of Aden Colony and Protectorate: Governor's recommendations to Colonial Office Collection Area: India Office Records and Private Papers Languages: English Date Range: Mar 1961 Extent: 1 file
30. IOR/R/20/B/3563 Reference (shelfmark): IOR/R/20/B/3563 Title: Memorandum on the Anglo-Yemeni frontier [2 copies] and related papers Collection Area: India Office Records and Private Papers Languages: English Date Range: 1956? Extent: 1 file