Hello,
there is a strange Problem i accidentally discovered on the German-Czech borderline
(in my case 1km north of hranice a small Bordertown in the northwestern Part of Czechia)
On the Borderline it reads "Österreich" which was true till 1918 - so i think its time to change that ;-).
The only Problem is i have no idea how - maybe someone could give me a clue or change this into Česka Repúblika