Vintage Wilton RWP Pewter A Loaf of Bread A Jug of Wine and Thou Plate. Love pewter for colonial and primitive decorating. A unique plate. This one is in great shape. Has RWP markings as well as Wilton Columbia PA USA marked on the back. Size is 9 1/2" diameter with a 1" deep dish. Only 1 of these available at this time.