Arthur Price of England Sovereign Silver Plate. The very best and most luxurious silver plate cutlery on the market, with a silver thickness of up to 40 microns. Unconditionally guaranteed for life and will offer a richness of patination, in time, that is beyond compare. Dishwasher Safe. The Bead pattern was originally designed by Huguenot silversmiths to represent pearls, which were popular in the French court of the 1760s.