this picture is not made in st vith !
the location of this picture is a crossroad from the german B-258 (called in 44 International Highway)
To have this exact spot in the same way, there is only a place with a 90° left and a 90° left between Aachen and Monschau and this is "Roetgen".
That pic was made in Roetgen in 1944
It's very interesting to see your picture with Aachen and Monschau...visited both towns several years ago. How time has changed many things in the world.