A simialr turquoise glass tripod censer also with a Qianlong mark from the collection of Robert Hatfield Ellesworth is illustrated in Clear as Crystal, Red as Flame, no. 34. Compare three other examples of similar form, one of pink glass from the Palace Museum, Beijing, illustrated in Zhongguo Meishu Quanji, vol. 10, no. 254; a yellow glass censer included in the exhibition, In Pursuit of Antiquities, 1995, Catalogue, no. 207; and a mint-green censer sold in these Rooms, 29 September 1992, lot 916.