A single-slip switch (Einzelkreuzungsweiche) at the western end of the station
Köln Ehrenfeld Gbf on the upgraded line Cologne-Düren
(<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/strecke/strecke.html">ABS 4</a>)
seen on 13 August 2002. The tongues are on the outside of the frogs, this type
is also known as "Baseler". Picture taken from a moving train, sorry for the
bad quality.
<p>
Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>