1. IOR/L/E/7/1551, File 7181 Reference (shelfmark): IOR/L/E/7/1551, File 7181 Title: File 7181 League of Nations - Twelfth Session of the Opium Advisory Committee Collection Area: India Office Records and Private Papers Languages: English Date Range: 20 Oct 1928-7 Oct 1930 Extent: 1 file