1. IOR/L/MIL/7/13662 Reference (shelfmark): IOR/L/MIL/7/13662 Title: Collection 309/37 Use of safety lamps in order to avoid accidents from gas explosions in hydro-pneumatic disappearing gun pits. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1898-1902 Extent: 1 file