Crackle-glazed Longquan bowls of this type may have been made in imitation of Guan wares and have been excavated from the Song dynasty kiln at Shifangxian; see Celadons from Longquan Kilns, Taipei, 1998, p. 166, no. 137. A similar bowl with a metal-bound rim is in the Palace Museum, Beijing, and is illustrated in The Complete Collection of Treasures of the Palace Museum, Porcelain of the Song Dynasty, (II), Hong Kong, 1996, p. 151, no. 136, where it is noted to have been in the Qing court collection. Another bowl of this type is in the National Palace Museum, Taiwan, and is illustrated in China at the Inception of the Second Millennium - Art and Culture of the Sung Dynasty, Taipei, 2000, p. 167, nos. III-21.