plate, with inscription 'W.K.H.F.P.V.O.R.' (Willem Karel Hendrik Friso, Prince Willem IV of Oranje) and dated 1750, ?? 23,5 cm. Added: a fine pair of polychrome decorated Dutch Delftware dishes, decorated with roundels filled with flower baskets, marked Jan Theunis Dextra (the younger) for the 'Griekse A', third quarter 18thC, ?? 22,5 cm