Fabian -
The coordinates you gave are near Panzer Kaserne, a U.S. military installation in Böblingen, originally German then post World War II it became American. I am thinking under razor fencing, it may have been military related. My. 90 year old father-in-law served in the American sector of Germany in the early 50's, I don't recall exactly where. I will ask him the next time I speak with him, he was a radio operator.
By the way, welcome to the board.