A similar 'incense box' dated to the middle of the Qing dynasty, in the collection of the Shanghai Museum is illustrated in Zhongguo Qiqi Quanji, vol. 6, Beijing, 1993, pl. 217. See, also, the similar example sold at Christie's New York, 22-23 March 2012, lot 1709. Both of these examples had a cover in the shape of a roofed upper storey, that is now missing from the present box.