Where in Leamington was this (sorry, my hometown)?
IIRC, round the back of the big church at the bottom of town, by the Royal Mail sorting office - I think it was on one of the white buildings at the junction of Church Terrace (from looking at Google Earth). I seem to recall it might have appeared on the wall of the old Polish centre too. It was a good 20+ years ago now, and it took me some considerable time to find out who this George Davis was (not helped by the fact it looked like George Pavis) and what he'd not done...and then did do. Nowadays, you'd just Google it and have the whole story before you reached the end of the street.