1. IOR/L/E/7/1454, File 3539 Reference (shelfmark): IOR/L/E/7/1454, File 3539 Title: File 3539 2nd Opium Conference 1925. Convention: exemptions under Article 8 and additions under Article 10 Collection Area: India Office Records and Private Papers Languages: English Date Range: 6 Nov 1925-7 Dec 1931 Extent: 1 file