An old F signal of the Kölner Verkehrsbetriebe (KVB) at the station
Tacitusstraße (the box with the two white lights between the two traffic
lights). It shows F 0 (stop). Seen on 30 August 2002, the last day the line was
in service.
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Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>