1. 'Book 130' Letters inward Contributor: Political Agent and Consul, Zanzibar (correspondent)Government of Bombay, Secretary to the Political Department (correspondent)Shaikh Salmin bin Nasir (recipient) Date: 1840/1841 Language: EnglishArabic Geographic region: Trucial CoastEl BiddahBahreinMuskatKarrack (island)Eastern Africa Extent: 1 file (40 folios)
2. 'Vol 174 1851/52 General or Miscellaneous and Packets' Contributor: Residency Surgeon, Persian Gulf (correspondent)Political Agent and Consul, Zanzibar (correspondent)Commander of the brigantine Tigris (correspondent)Commander of the brigantine Euphrates (correspondent)Samuel Hennell (correspondent) Date: 1850/1851 Language: English Geographic region: ZanzibarQaisRass el KhymaSoharAbo ThabeeAdeedEuphrates RiverBushireEl BiddahKenn IslandBassidoreKateefCongoonDoahFowaritGutturInderabia Extent: 1 volume, 54 items (83 folios)
3. ‘Trigonometrical plan of the harbour of El Biddah on the Arabian side of the Persian Gulf. By Lieuts. J. M. Guy and G. B. Brucks, H. C. Marine. Drawn by Lieut. M. Houghton’ Contributor: George Edward Brucks (surveyor)John M. Guy (surveyor)Michael Houghton (surveyor) Date: 1823/1823 Language: English Geographic region: El Biddah Extent: 1 map sheet
4. 'Persian Gulf précis. (Parts I and II)' Date: 1913/1913 Language: EnglishFrench Geographic region: BahrainKuwaitGwādarAl-HasaTrucial CoastEl BiddahKatarMaskatTurkish ArabiaKatifChatt el-ArabZakhnuniyeh Extent: 1 file (60 folios)