Spinach jade bowls of this type carved with bats and Buddhist emblems are rare, although a similar 'bajixiang' spinach jade bowl was sold at Christie's New York, 19th September 2006, lot 33. Compare a related spinach jade bowl, although carved with dragons amongst clouds, sold in our London rooms, 10th November 2004, lot 572; as well as a pair, sold at Christie’s New York, 18th September 2003, lot 111. See also a jade bowl in the Palace Museum, Beijing, illustrated in Zhongguo yuqi quanji, vol. 6, Shijiazhuang, 1993, pl. 333, which is carved in a style very similar to the present piece.