Prestigious potteries firm Emma Bridgewater has unveiled its commemorative collection to mark the coronation of King Charles III.The range, featuring the firm's traditional hand-decorated mugs and plates, is on sale from this week ahead of the royal occasion on 6 May. Emma Bridgewater's royal pedigree includes marking historic events and hosting visits by the King himself and the Princess of Wales."The pottery industry has got a long-standing, proud tradition of producing commemorative ware that goes back to probably the mid-17th century," Steve Beeston, head of production at Emma Bridgewater, said.