The practice of incense burning has prevailed throughout Chinese history. By the Qing dynasty, vessels for this particular purpose were often found in formulaic groups of three: a circular box for the storage of incense either in strip, coil or pellet form; a tool vase which accommodated implements such as chopsticks and spatula for raking over ashes; and a censer. Compare with other jade incense garnitures in the National Palace Museum, Taipei, illustrated in the Special Exhibition of Incense Burners and Perfumers Throughout the Dynasties, Taipei, 1994, nos. 84 and 85. Two other jade sets were sold at Christie's Hong Kong, 300 Years of Jade, 30 October 2000, lots 657 and 658. Garnitures were also produced using other materials such as champlevé enamel, Canton enamel and ceramic in imitation of bronze, see op. cit., nos. 86, 88 and 89 respectively. A set in gilt-lacquer is in the Beijing Palace Museum, illustrated in Zhongguo Qiqi Quanji, Qing dynasty, vol. 6, no. 9.