The two diesel locos of the Dürener Kreisbahn (DKB) parked side by side in
Düren on 3 October 2001. The right one is 6.304.1, so the left one should
be 6.305.1. At the engine compartment, 6.305.1 has an inscription of the track
working company Kölngleis, maybe it is hired by them for the construction
works on the mainline to Cologne.
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Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>