A machine of RR Gleisbau working on the trackbed between Horrem and Sindorf (on
Cologne-Aachen) after tamping on 29 August 2001. It seems to be a very dusty
job.
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>