Here we are in Lock’s of St James’, close by St James Palace in the centre of London. This is Roger Stephenson, the present Deputy Chairman of the famous hatters. His family has been in business on this site for over 300 years – making them members of the ‘Tercentenary Club’, for just such businesses. (The oldest – a Devon butcher!) Lock’s chose well – very handy for a Royal needing a splendid hat! Among the treasures on show in the shop are the wooden former used to prepare the crown for the Queen’s coronation, and the precise details from Nelson in an order for a new bicorn hat. Which were of course used to make the new hat adorning the fabulous Chelengk. As well as the head measurements of many famous people. But hang on – how do you measure a head..?