I visited Bletchley Park a couple of years ago and the first thing I learnt
was that there had been a 'Listening station' set up in Bishop's
Waltham during WW2. I discovered nothing further about this until I found a webpage:-
https://www.hampshirechronicle.co.uk/news/15780871.relic-of-wartime-defence-removed-after-70-years/
