Sep15*   Thames Tunnel southbound from Wapping

http://www.sucs.org/~cmckenna/photos/quizes/tq2/September/Sep15.jpg
http://www.sucs.org/~cmckenna/photos/quizes/tq2/September/Sep15sm.jpg

Question:
[url=http://www.sucs.org/~cmckenna/photos/quizes/tq2/September/Sep15.jpg][img]http://www.sucs.org/~cmckenna/photos/quizes/tq2/September/Sep15sm.jpg[/img][/url]
(click for a larger version)