In message , at
22:33:26 on Mon, 8 Dec 2008, Tom Anderson
remarked:
I don't see how the former is helpful. If you want to write them a
letter, then the postcode is sufficient, and the addition of Essex is
completely superfluous. If you actually want to go there, the addition
of Essex is actually unhelpful, because if you have modern maps and are
not aware that there's a bit of London which thinks it's in Essex,
you'll be looking on the wrong page. Unless you just look up Ilford
directly, in which case the county designation again is completely
superfluous.

It's very helpful to have a steer that "IG" is in fact in the old county
of Essex, and not Cornwall.
--
Roland Perry