POSTCARD: "PB Souvenir Mugs" ca. 1980 ________________________ p> These souvenir porcelain beer tankards, manufactured for over 50 years by the Royal Porcelain Works in Worcester, were among the more popular, and expensive, items on sale in the PB Museum's gift store. The high price - ten pounds - meant that many visitors preferred this 10p postcard. It is said that one of these tankards takes pride of place on the mantlepiece at Highgrove, Prince Charles's country estate.