@farmerman,
(Old) Eckernförde sector light)
I've seen it (and used the light) several times when it was still active.
There's an interesting story behind this lighthouse:
Already in the middle of the 19th century Eckernförde is said to have got a simple leading light so that ships could head for the Eckernförde Bay even under difficult visibility conditions. In 1907 a real lighthouse was built to take over this task as a leading light - it was a spacious guards' house that was built on the east side of the "Klintbarg" with a large light room on the upper floor.
But after only six years in operation, the authorities clashed: in 1913, the Navy built a torpedo testing facility directly under the tower. However, the leading light led the bay entering ships directly through the torpedo tracks. The lighthouse, on the other hand, could not be moved. As a temporary solution, a warning sector was set up for this area. The fire was electrified as early as 1926, but a solution for the temporary solution was still not foreseeable.
This did not change for the next sixty years, until the long-awaited new leading light was finally put into operation a little further north in 1986. The old fire was extinguished, the last lighthouse keeper left the building on September 30, 1986, and the building was converted into holiday apartments for employees of the Waterways and Shipping Office.