Historical sign

via StreetComplete 59.0

Attached photo(s):
https://westnordost.de/p/241846.jpg
https://westnordost.de/p/241847.jpg
https://westnordost.de/p/241848.jpg
https://westnordost.de/p/241849.jpg
https://westnordost.de/p/241850.jpg