Compare with similar published bulb bowls, inscribed with the same numeral, such as the example in The National Palace Museum, Taibei, included in the Illustrated Catalogue of Sung Dynasty Porcelain, pl. 66; another in The Tokyo National Museum illustrated by Tregear, Song Ceramics, pl. 171; and yet another from the Harcourt Johnstone and Enid and Brodie Lodge Collections exhibited at the Oriental Ceramic Society, London, 1952, Exhibition, Sung Dynasty Wares, Chun and Brown Glazes, no. 31 and sold in Hong Kong, 30 April 1996, lot 306.
Compare also with the examples in the Percival David Foundation, London, included in Oriental Ceramics, The World's Greatest Collections, vol. 6, 1982, no. 51; in the Avery Brundage Collection, Asian Art Museum of San Francisco illustrated by Tregear, Song Ceramics, pl. 147; in Ayers, Far Eastern Ceramics in the Victoria and Albert Museum, no. 103; and in Sekai Toji Zenshu, Shogagukan Series, vol. 13, pl. 289.