Princess Elettra Marconi Giovanelli unveiled this plaque on the 231st May 2007 in the presence of her son Guglielmo to commemorate the 100th anniversary of the wireless station at Derrygimla owned by her father Guglielmo Marconi

See also...
Spudgun67 on Wikimedia Commons
Rbirkby on Wikimedia Commons
Peter Reed on Flickr
Alwyn Ladell on Flickr
cazphoto.co.uk on Flickr
Paul Mison on Flickr
kokeshi on Flickr
Stuart Axe on Flickr
Kay Atherton on Geograph
Elliott Brown 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