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 Chester pattern was commissioned by the Lord Lieutentant of Cheshire, the 2nd Duke of Westminster during the early 19th Century.