Georg Verkehrsgesellschaft (GVG) 109-2 in Berlin Lichtenberg on seventh of June 2005. At the time when this night-service was introduced the locomotives was rented from Adtranz (now Bombardier). I don't know how it is today, but all three locos shows inscriptions with the GVG-adress for reponsibility.
Photo by Arnim v. Herff (arnimvherff@uni-duisburg.de)