Royal Doulton Silver Sonnet Side Plate Black glazed raised rim Platinum decoration Fine Bone China Royal Doulton c.2007 Royal Doulton Silver Sonnet Side Plate Fine Bone China £10.00 Quantity: at £10.00 each 2 in stock. Royal Doulton Silver Sonnet fine bone china side plate. A 7 inches - 18cm approx wide square shaped plate with a wide black glazed raised border, a paltinum rim and very fine platinum lines and dots decoration. Royal Doulton, Silver Sonnet, Fine Bone China, © 2007 RD. Perfect for a contemporary table setting to serve side dishes. In excellent condition.