Underground stop, one direction only
<a href="//commons.wikimedia.org/wiki/User:DrFrench" title="User:DrFrench">DrFrench</a>
2009-12-20
Self, based on <a href="//commons.wikimedia.org/wiki/File:BSicon_BHFlf.svg" class="mw-redirect" title="File:BSicon BHFlf.svg">BSicon_BHFlf</a> <i>by</i> <a href="//commons.wikimedia.org/wiki/User:Maxima_m" title="User:Maxima m">Maxima m</a>