1. IOR/Z/E/4/18/D616 Reference (shelfmark): IOR/Z/E/4/18/D616 Title: Dum Dum, Road to Cossipore, supposed existence of black carbonaceous substance near bridge on asserted to be valuable as artificial fuel Collection Area: India Office Records and Private Papers Languages: English Date Range: 1844-1846 Extent: 1 entry