49. ‘Oil concession signed by the Shaikh of Bahrein in favour of the Eastern and General Syndicate on the 2nd December 1925 (as revised up to 12th January 1934).’ Date: 1933/1933 Language: English
50. 'Dated 3rd June, 1936. HIS EXCELLENCY SHAIKH Sir HAMAD BIN SHAIKH 'ISA AL KHALIFA, K.C.I.E., C.S.I., SHAIKH OF BAHRAIN AND THE BAHREIN PETROLEUM COMPANY LIMITED. DEED OF MODIFICATION OF LEASE [COPY] dated 29th December, 1934.' Date: 1936/1936 Language: English Geographic region: Bahrein
51. ‘Persian Gulf gazetteer. Part 1. Historical and political materials. Précis of Bahrein affairs, 1854-1904.’ Creator: Author: Jerome Anthony Saldanha Date: 1904/1904 Language: English Geographic region: Bahrain
53. 'Customs Duty on Goods Landed at Bahrain in Transit to the Mainland' Date: 1920/1921 Language: English
57. 'His Excellency SHEIKH HAMAD BIN SHEIKH ISSA AL KHALIFAH SHEIKH of BAHREIN AND THE BAHREIN PETROLEUM COMPANY LIMITED. LEASE [COPY]' Date: 1934/1934 Language: English Geographic region: Bahrein
58. 'Old index Book No 143 From January To Dec' Vol 143 Letters outward Date: 1844/1844 Language: English Geographic region: Trucial Coast
59. 'Correspondence re the Establishment of a Wireless Telegraph Station in Bahrain' Date: 1902/1917 Language: English
60. 'Question of British Interference in the Administration of Bahrain' Date: 1929/1929 Language: English Geographic region: Bahrain