The opening pub scene mentions "thirty bob." This sum was, in pre-decimal money, 50% more than a pound. A pound, pre-1971, consisted of 20 shillings. Also, for modern audiences, it would be perhaps helpful to know that UK licensing laws required pubs to close every afternoon between 2.30pm and 6pm - though the precise times were variable, because of various by-laws ,in differing counties and boroughs.