Proposed livery for C stock trains as seen at the 1990 Upminster depot open day
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/47739225@N08">citytransportinfo</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/citytransportinfo/50991796498/">C-Prototype-Refurbishmnt-Upminster-Depot</a>