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This command bunker was one of the largest of the regelbau bunkers. The bunker housed a plotting and command post and a 10 metre range finder to measure the bearing and distance of targets. Two were built in Norway, one at Austrått fortress and one at Fjell, which both sported a gun turret form the Gneisenau. This S466 was at some point after 1945 modified to house a coastal radar and was used until 2005. One source suggests that a third S466 might have been built at Nøtterøy in Norway. The bunker and gun foundations were mentioned in documents from the spring of 1944. The battery was test fired during the war and became part of the Norwegian coastal artillery after the war, but is on what still is military ground and not open to the public and has never been confirmed to ever having been built.
Only two more S466s are said to have been built, both in France, one in Corvee and one in Seydlitz.
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