1. IOR/L/E/7/991, File 558 Reference (shelfmark): IOR/L/E/7/991, File 558 Title: File R&S 558/1920: Specialist branches of the Public Works Department including Sanitary Engineers. Reorganisation, terms of appointment, etc. Collection Area: India Office Records and Private Papers Languages: English Date Range: Mar 1919-Jul 1922 Extent: 1 File