Along the same lines:
Have you seen Panthers, Tiger II's, or Jagdtigers with unit insignia?
Stug III's with Brigade insignia but what about Divisional or smaller?
Jagdpanzer IV's or Panzer IV/70's (116th P.D. exception?)
Other AFV's that do not seem to have been marked with unit emblems(i.e. Nashorn, Hummel, StuG IV, Marder 38(t))?
Seems the later the date the vehicles was fielded the less likely to see unit emblems applied.