In message , at 19:16:59
on Sun, 23 Jun 2013, Stephen Furley remarked:
I just noticed that you said this was on Friday. I'm pretty sure
Saturday was their first day on the 24, so the one you saw was probably
either being moved to whatever depot they operate from, or on crew
training, and not actually in service.

Is the depot inside the congestion zone (the bus I saw was about a
minute outside, heading in).
--
Roland Perry