I've got an unused 30.9mm dia. 367mm long black layback Thomson that a change in frame choice has rendered the wrong size.
I'm looking to swap it for an identical 31.6mm one (i.e. black, layback, 400mm-ish long) in a decent condition.
My email address is tom underscore blessington at hotmail dot com and I'm based in London (work Central, live SW).