TWO SETS OF CONTINENTAL ICHTHYOLOGICAL PLATES,

TWO SETS OF CONTINENTAL ICHTHYOLOGICAL PLATES,
20TH CENTURY,
comprising a set of twelve yellow ground plates, each with green printed marks for Royal Doulton, retailer's mark for J. E. Caldwell, signed 'A. Perry' on the front, each named on the reverse; and a set of eight Limoges plates, each with green printed Limoges France flag mark and blue triangle mark for Martin & Ducher, signed 'A. Ritt'
9¼in. (23.5cm.) diameter (20)