The Rangefinder Tower

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The Rangefinder Tower at Pleinmont on the SW corner of Guernsey is an iconic structure.  This may be something to do with the it looking like the helmet from some great concrete medieval knight, as in pic 8 above.  It is one of a chain of towers around the coast.  Seen first from the Command Post, with another tower (5) beyond, it looks out over the Atlantic.  The view in pic 7 is the usual view, taken from almost as far away as it's possible to get before falling into the sea.