Hanno found some interesting info on the MTB plant in the other thread..don't know if even that survives...
very interesting before and after photos of the Angus Yards locomotive works which made Valentine tanks in WWII.. the building has been split in two with a road running through what was the middle, one part is now a large supermarket..
You can briefly see the valentines made, along with planes etc in this wartime promotional clip
http://www.youtube.com/watch?v=qw4LCHWXML4