In message , at
16:03:04 on Mon, 8 Dec 2008, Tom Anderson
remarked:
Town Hall, 128-142 High Road, Ilford, Essex, IG1 1DD

It would be equally correct to write:

Town Hall, 128-142 High Road, Ilford, Outer Mongolia, IG1 1DD

No, because it makes no sense.
--
Roland Perry