Wm Adams &Co Gaudy Welsh Flow Blue Polychrome Berry & Vine Saucer

6 1/4 inch saucer polychrome in green, red and flow blue. Berry and vine pattern,Tunstall England. Registered mark on the back with IV at the top and c at the bottom. Other marks are 11 to the left of diamond and E to the right. Great condition with no chips or cracks. No crazing