A pair of Doucai 'Dragon' wine cups, Qing Dynasty, 18th century, each thinly potted with steeply flared sides and lipped rim, painted with two green scaly dragons pursuing flaming pearls among cloud scrolls, within underglaze-blue outlines and line borders, the base inscribed with an apocryphal six-character mark of Chenghua within a double square, wood stands (4) 5.7 cm wide