German Observation Bunkers for gun batteries along the Atlantic Wall from WWII. I have only heard these types of bunkers called 'Schnabelstand' which I think translates to "Beak Position" if I'm not mistaken. The bunker is most notorious for being incorrectly depicted as a machinegun emplacement in the movie Saving Private Ryan. Does anyone have more information on these installations and their correct classification? I don't want to keep referring to them as 'Schnabelstand' if that is incorrect.
The German word for observation bunker is Beobachtungsbunker, which like this one in the Channel Islands looks very familiar to yours. Sometimes they are called a pill box or blockhaus or simply a bunker but I guess it depends on their internal uses???