A Cambria pattern earthenware Platter printed in blue and yellow in a Chinoiserie design highlighted with red and gilt. Manufactured by Charles Heathcote & Co, and features The Prince of Wales Three-Feather Crest which appears on printed marks.
Charles Heathcote & Co was a small manufacturer specializing in earthenware at Lane End Longton Stoke on Trent between 1818 to 1824. 
This platter has the number 18 under the printed marks which denotes the year it was manufactured which is 1818. 
Certainly a piece for collectors or a fabulous addition to adorn your table.