294 801-6 and 294 657-2 are parked at Stolberg (on Cologne-Aachen) on 7 June 2004. Note the big "4" attached to the first loco. This is obviously used to distinguish between the shunting locos in bigger stations, but it is normally not used here (the second loco has no number), where at most three or four shunting locos are to be seen at the same time.
Digital photo by Christoph Schmitz (christoph.schmitz2@post.rwth-aachen.de)