Pub mugs form an interesting aspect of Britain's history. They were not just drinking vessels, but also measures, and as such the subject of much regulation, because drinkers wanted to be sure of receiving what they had paid for. The pint itself has a chequered history and is an anomaly alongside today's metric system. The question of a fair pint has never been resolved: should it include the 'head' or not? Drawing from a wide range of sources, the author has brought together all these strands to give the first ever overview of 350 years of beer mug history.