Came across this and it is a Code 3 Promo's from the London Press Exchange to promote there move to there new address. A friend of mine picked up four of them from a house clearance of an old couple where one had sadly died and they both worked there back in the 60's/Early 70's, they were carefully packed away at the back of a draw and had probably been there for years as they all looked as good as new. I have no reason to doubt my friend as he is one of the good guys and honest as a day is long. Anyone seen these before ?
