1. IOR/L/PS/20/C158D Reference (shelfmark): IOR/L/PS/20/C158D Title: Treaties and undertakings, etc, in force between the British Government and the Rulers of Bahrain, 1820-1914. [English and Arabic versions] [Calcutta: Govt of India Foreign and Political Dept, 1916] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1916 Extent: i, 36pp