Carriages from an ex-Victoria Line 1967 Stock train sit separated on the Acton Works Emergency Response Unit's training ground. Of note are the red wires, which are part of the TBTC signalling system used on the Jubilee Line.
<a href="//commons.wikimedia.org/wiki/User:Mattbuck" title="User:Mattbuck"><i>mattbuck</i></a> <small>(<a href="//commons.wikimedia.org/wiki/Category:Images_taken_by_mattbuck" title="Category:Images taken by mattbuck">category</a>)</small>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span> by <a href="//commons.wikimedia.org/wiki/User:Mattbuck" title="User:Mattbuck"><i>mattbuck</i></a>.