Routemaster RM1735 on heritage route 9.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/58764224@N04">Gerry Smith</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/gerrysmith/6015193356/">Routemaster. Heritage route London</a>