1. IOR/L/PJ/6/1826, File 6040 Reference (shelfmark): IOR/L/PJ/6/1826, File 6040 Title: File 6040 - The Work of the British Official Wireless Service; correspondence regarding the transmission of messages to India Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1922-May 1929 Extent: 1 file