Last Saturday, about 15:30, Southbound through Wilmslow a friend heard it but missed seeing the loco, only the train.
What was it?
probably 1M55 Glasgow to BNS, a voyager..passed at 1528..
thats brum new street...
Which is BHM.
But wot loco?
Try here http://www.uksteam.info/tours/trs10.htm#twk and look at the relevant date. Looks like it was a pair of Black 5s.
Edit: Since found some video, hope this helps. http://www.youtube.com/watch?v=qqAnGqLJvsk
