A WW1 acoustic mirror lovingly preserved in the middle of a modern housing estate in Redcar, Cleveland. pic.twitter.com/BmtPkGoTL2
— KThomas O (@soullessparty) August 22, 2020
Acoustic early warning systems, spectacular remnants of a dead-end technology on the British coast
A WW1 acoustic mirror lovingly preserved in the middle of a modern housing estate in Redcar, Cleveland. pic.twitter.com/BmtPkGoTL2
— KThomas O (@soullessparty) August 22, 2020