Guglielmo Marconi [full inscription unknown]

See also...
Nick Harrison on Flickr
Rbirkby on Wikimedia Commons
Peter Reed on Flickr
Alwyn Ladell on Flickr
cazphoto.co.uk on Flickr
Robin Lucas on Geograph
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