Three Dutch Delft blue and white and polychrome plates, mid-18th century

one painted with a figure in blue inscribed 'Le Roy' 'de Maroc', 'no 18', floral scroll border; a pancake plate with a figure picked out in yellow, inscribed 'Larc(?)' 'glois', 'no 4', lambrequin border, both with blue PAK marks for Pieter Adriaensz Kocx, owner of the De Grieksche A (The Greek A) factory; the third plate painted with a portrait of William IV, Prince of Orange, inscribed 'VIVAT', 'ORANGE', 'AN..W.KH.F..P.V.O.R..NO.', 'E.S.H.D.', 'K.G.R.A.R', and dated 1750,
Quantity: 3
22cm., 8 5/8 in. to 23.7cm., 9 3/8 in. diameter