In reply to Rog Wilko:
Mitchell's Field Guide to Trees of Britain and Northern Europe describes the bark as
Smooth, silvery grey, sometimes with a few large warts; old trees variable: some silvery grey with a few fissures, some brown-grey, some shallowly fissured into small rough plates.
It also says that the autumn leaves of older trees can be cigar-brown all over, or deep red, or sometimes yellow and brown on each leaf. The leaves of young trees, it says, usually go a deep red, so you are most likely looking for an older tree.
Post edited at 10:57