Went from Hampton-in-Arden to New Street and back yesterday. Large BR logo at International duly noted, but New Street itself seems to be bereft of them. Running in boards at platform ends are Network Rail branded. As you approach the station's main entrance from the Bull Ring, you are still greeted by the large sign announcing 'Birmingham New Street Station' but to the left of it is not a 'double arrow'. Actually, I can't remember if it was an NR logo or a 'Network West Midlands' one, but it definitely was NOT a BR one.
Incidentally, it has been a long time since I used New Street and I was confused when I couldn't see any signs for the Stephenson Street exit. I Presume that is now the Palisades Shopping Centre?