Border stone from c. 1280 on the border of the lands of the Wrocław bishops. In the background the contemporary road sign marking the border between  Opole and Wałbrzych voivodships. Photo: Władysław Łoś
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Wlos" title="User:Wlos">Wlos</a> assumed (based on copyright claims).
CC BY 2.5
No machine-readable source provided. Own work assumed (based on copyright claims).