Cf. a similar bowl in the National Palace Museum, Taibei, illustrated in Blue and White Ware of the Ch'ing Dynasty, Book II, pl. 28; and another in the Baur Collection, illustrated by J. Ayers in the Catalogue, vol. IV, no. A584, where he mentions one in the Victoria and Albert Museum (no. 260-1905). He also quotes on p. 9, a translation by S. Bushell, Oriental Ceramic Art, 1981, p. 200, that the List of Porcelains supplied to the Court compiled by Tang Ying in 1729, includes as item 27 'copies of porcelain of the reign of Xuande with painted designs on a yellow ground'. For the Ming blue and white prototype of this design, see the Xuande-marked conical bowl with comparable interior decoration, illustrated in Sekai Toji Zenshu, vol. 14, pls. 28 and 29.