1. IOR/L/E/6/51, File 1414 Reference (shelfmark): IOR/L/E/6/51, File 1414 Title: File S&C 1414/1880 - Papers regarding the opium clauses of the Chefoo Convention Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1880-Dec 1880 Extent: 1 file