1. 'File 21/4 Aerodrome at Bahrein [Bahrain] and Royal Air Force Landing Ground' Date: 1927/1939 Language: English Geographic region: Muharraq
2. 'File 21/25 Imperial Airways, Bahrain: Muharraq Aerodrome' Date: 1934/1936 Language: English Geographic region: Muharraq
3. 'File No. 40 Muharraq: sanitary measures in.' Date: 1918/1918 Language: English Geographic region: ManamaMuharraq
4. 'File 33/9 [17/2] TELEPHONIC COMMUNICATION BETWEEN MUHARRAQ & MANAMA.' Date: 1932/1935 Language: English Geographic region: Muharraq
5. 'File 6/13 Electric Lighting Manama' Date: 1927/1946 Language: English Geographic region: ManamaMuharraq
6. 'File 6/19 Proposed construction of a sea road between Manama and Muharraq Islands' Date: 1929/1942 Language: English Geographic region: ManamaMuharraq
