1. IOR/L/E/7/1187, File 134 Reference (shelfmark): IOR/L/E/7/1187, File 134 Title: File 134 Opium: transfer to the League of Nations, of duties placed upon the Netherlands Government by the Opium Convention of 1912 Collection Area: India Office Records and Private Papers Languages: English Date Range: 15 Dec 1920-20 Apr 1922 Extent: 1 file