1. IOR/L/MIL/5/405, Coll 233 Reference (shelfmark): IOR/L/MIL/5/405, Coll 233 Title: Military Department Special Collections: Collection 233 Scope & Content: Copy correspondence, memoranda and statements on Congreve rockets Collection Area: India Office Records and Private Papers Languages: English Date Range: 1813-1821 Extent: 1 file