DATE CYPHER FOR 1876, IMPRESSED UPPERCASE MARK, IMPRESSED DIAMOND REGISTRY MARK FOR 1875, SHAPE NO. 622, BLACK PAINTED 11, THE DESIGN ATTRIBUTED TO CHRISTOPHER DRESSER

See N. Dawes, Majolica, New York, 1990. p. 65, fig. 111 for a turquoise example from the Joan Esch Collection noted as Aesthetic style commissioned by a designer outside the Mintons factory. Also see M. Karmason with J. Stacke, Majolica a Complete History and Illustrated Survey, New York, 1989, book jacket, frontispiece and p. 52 supporting the attribution of design to Dr. Dresser.