October 27, 2014 at 3:25 pm
Dating from 1917.
http://www.kentonline.co.uk/dover/news/sound-mirrors-a-significant-discovery-25919/
By: paul1867 - 27th October 2014 at 18:27
Thanks for that. Have wanted to see the mirrors at Denge for some time but never in Kent at the right time. Hopefully these will be more available. Any ideas why it was thought necessary to bury them?
Answer here also picture
http://www.andrewgrantham.co.uk/soundmirrors/locations/dover/
By: Meddle - 27th October 2014 at 17:00
An interesting read. I look forward to an update when they uncover them.