Crack this code. Get famous.

We all know that the Somerton Man was held in good favour by the publican of the local Elephant and Castle, which by the way is an abominable mutteration of the elegant ‘Enfant de Castille’, that aside it has come to my knowledge that certain code games were played in the pub in those days, one of which has survived the years to the present.

See pic.

Your challenge is to identify the purpose of this code, though you better be quick before Cramer gets to grips with it. And Pelling I hear you say, does he have the nous to sort it out? Not likely is the unanimous response, he’s a humourless Pom.