My friend Elizabeth spotted this at the Department of Coffee and Social Affairs in Carnaby Street.
A little Norf Sarf geo-pedantry, particularly for a small group of my geeky friends. Most Londoners consider the Norf Sarf boundary to be the Thames. Teddington is in the London Borough of Richmond on Thames which is considered to be in south west London however Teddington is Norf of the Thames, it is also 3.3 miles south west of Richmond which is Sarf of the Thames!