This looks like a passenger protest against late running trains but is in fact an open day in a south London rail yard.<br>stewarts lane 2
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/61132483@N00">Les Chatfield</a> from Brighton, England
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/61132483@N00/3118501">Flickr</a>