English: Road Sign, Chelmsford Marconi took over a former silk mill in Chelmsford in 1898 and established it as the world´s first radio factory - the Wireless Telegraph and Signal Company Limited. The Marconi Company´s manufacturing business in Chelmsford expanded so rapidly that a new factory was built in 1912 in New Street. In June 1920 the first publicised entertainment broadcast in England was transmitted from the New Street site when Australian prima donna Dame Nellie Melba sang at a concert sponsored by the Daily Mail. Permission was given to transmit regular entertainment broadcasts, and a station was set up at the hut at Writtle. Using its call sign Two Emma Toc (2MT), it began transmitting in February 1922.