Ding bowls of this large size and form are very rare, and the current bowl further distinguishes itself in having different decorations on the exterior versus interior. Compare to two similar Ding bowls of this form, of slightly smaller size (24.5 cm. diam.) and carved with daylilies on both sides, one was in the Qing Court collection, illustrated in Porcelain of the Song Dynasty (I), The Complete Collection of Treasures of the Palace Museum, Hong Kong, 1996, p. 63, no. 55, the other in the Ataka Collection, illustrated in Sekai Toji Zenshu, vol. 12, Japan, 1977, p. 16, no. 8. It is also interesting to note that among those with a subtle low foot ring on the larger bowls, the exterior sides tend to be bevelled as can be seen the underside bowls of those included in the exhibition, Decorated Porcelains of Dingzhou, White Ding wares from the collection of the National Palace Museum, Taipei, 2014, pp. 130-133, figs. II-81-II-83.
Compare to another slightly taller Ding bowl (13.3 cm.) of similar form carved with daylilies on both side in the Qing Court collection, , see op. cit., Hong Kong, p. 55, no. 47.