1. IOR/L/E/7/1408, File 4987 Reference (shelfmark): IOR/L/E/7/1408, File 4987 Title: File 4987 Cholera - As to the visit of two Indian Medical Service officers to Warsaw in order to study method of preparation of anti-cholera vaccine for oral administration Collection Area: India Office Records and Private Papers Languages: English Date Range: 5 Aug 1925-23 Jun 1926 Extent: 1 file