A PAIR OF DUTCH DELFT OVAL BUTTERDISHES WITH COVERS AS A SWAN, painted in colours and naturalistically modelled in relief, the bulbous light-blue ground dishes painted with waves and two mackerel-type fishes, the covers modelled as a white swan with curved neck, the beak orange, floating on slightly domed base, similarly decorated to the dishes, one marked Swaan 11, the other Swaan 2 to the inside of dish, the covers marked 11 and the other 2, both undersides of dishes marked for de porceleyne bijl (one blue, the other manganese-red), 18th Century