Compare to a jade scabbard with a similarly carved chilong from the tomb of Zhao Mo (r. 203-137 BC), a ruler of Nanyue Kingdom, illustrated in Zhongguo yuqi quanji, vol. 4, Qin. Han - Northern and Southern Dynasties, p. 61, no. 81, 82. Compare, also, to a jade heng with two similarly carved chilong, each with a long snout and slenderly tortuous body, in the Palace Museum, Beijing, illustrated in Jadeware (I), The Complete Collection of Treasures of the Palace Museum, Hong Kong, 1995, p. 249, no. 209.