Note: The deep and rich yellow covering this dish is characteristic of imperial yellow wares of the Zhengde reign, achieved through a slight increase in the amount of iron oxide to the iron-yellow enamel. Zhengde mark and period dishes of this form and glaze are held in important museum and private collections worldwide; see for example one in the Palace Museum, Beijing, illustrated in The Complete Collection of Treasures of the Palace Museum. Monochrome Porcelain, Hong Kong, 1999, pl. 41; another from the Sir Percival David Collection and now in the British Museum, London, published in Margaret Medley, Illustrated Catalogue of Ming and Ch’ing Monochrome in the Percival David Foundation of Chinese Art, London, 1973, pl. 597; and a third from the Koger collection, included in John Ayers, Chinese Ceramics. The Koger Collection, London, 1985, pl. 69.