1. IOR/L/E/7/1287, File 3451 Reference (shelfmark): IOR/L/E/7/1287, File 3451 Title: File 3451 League of Nations - Opium Advisory Committee (Fourth Session) Collection Area: India Office Records and Private Papers Languages: English Date Range: 19 Sep 1922-10 May 1923 Extent: 1 file