Vintage Royal Worcester 8 Set of Dinner Plates in Cobalt Blue and Gold Trim. Made of porcelain in the United Kingdom, each plate has a round shape and features a multi-color design. This set is perfect for all occasions and is a vintage original collection from Royal Worcester. This is a nice Royal Worcester 8 Set of Dinner Plates Cobalt Blue and Gold Trim. The dimensions of the plate is 10 in diameter.