Princess Elettra Marconi Giovanelli unveiled this plaque on the 28 June 1995 to commemorate the 100th anniversary of the development of wireless by her father Guglielmo Marconi. This site was used by Marconi as the first commercial transatlantic wireless station between 1907 and 1922

Chris N Illingworth on Wikimedia Commons
See also...
Spudgun67 on Wikimedia Commons
Rbirkby on Wikimedia Commons
Peter Reed on Flickr
Alwyn Ladell on Flickr on Flickr
Robin Lucas on Geograph
kokeshi on Flickr
Stuart Axe on Flickr
Kay Atherton on Geograph
Nick Harrison on Flickr
Nick Harrison on Flickr
Simply Jan on Flickr
Simply Jan on Flickr
Eugene O'Loughlin on Flickr PD 1.0
Nick Harrison on Flickr