<a href="//commons.wikimedia.org/wiki/Category:BSicon" title="Category:BSicon">Category:BSicon</a> for underground urban interchange terminal station with expired or proposed extension.
<a href="//commons.wikimedia.org/wiki/User:Sameboat" title="User:Sameboat">Sameboat</a>
13 January 2012, 01:34:48 (upload date)
Other public domain BSicon files.