1. IOR/L/E/9/1053 Reference (shelfmark): IOR/L/E/9/1053 Title: Collection 152/49 Tariff Board Enquiries - report on sodium thiosulphate, sodium sulphite and sodium bisulphite Collection Area: India Office Records and Private Papers Languages: English Date Range: Dec 1946-May 1949 Extent: 1 file