1. IOR/L/PJ/6/740, File 3742 Reference (shelfmark): IOR/L/PJ/6/740, File 3742 Title: Payment of a bonus for Mr W Leonard, late Supt of Alipore Central Jail for his invention of a device for opening and closing simultaneously the doors of a number of cubicles Collection Area: India Office Records and Private Papers Languages: English Date Range: 23 Nov 1905 Extent: 1 file