1. IOR/L/E/9/754 Reference (shelfmark): IOR/L/E/9/754 Title: Collection 117/13 Opium and Drugs: Reports and statistics - Permanent Central Opium Board: annual estimates supplied by Government of India - Form B(L) Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1933-Oct 1947 Extent: 1 file