1. IOR/L/E/9/746 Reference (shelfmark): IOR/L/E/9/746 Title: Collection 117/5 Opium and Drugs: Reports and statistics - Permanent Central Opium Board: discrepancies in statistics supplied by Government of India and explanations Collection Area: India Office Records and Private Papers Languages: English Date Range: Oct 1929-Feb 1932 Extent: 1 file