Commemorated on 2 plaques
In this building was established in 1899 the first radio factory in the world by the Wireless Telegraph & Signal Co Ltd. later known as "Marconi's Wireless Telegraph Co Ltd"
Hall Street, Chelmsford, United Kingdom where it sited (1899)
Marconi House Within this building Marconi's Wireless Telegraph Company Limited operated their famous broadcasting station 2.L.O. from May 11th to November 14th 1922 when it became the first station of the British Broadcasting Company. The first pre-announced broadcast of public entertainment took place two years earlier when Dame Nellie Melba sang from Marconi's Chelmsford Works on June 15th 1920
Marconi House, The Strand, London, United Kingdom where it was