Lot Essay
Cf. a similar example placed in the Yangxin Hall where the Emperor received his officials, illustrated in the Palace Museum publication Imperial Life in the Forbidden City, 1644-1911, 1982, p.54; compare also the example from the Palace Museum illustrated in Zhongguo Meishu Quangi, vol.10, The Crafts, Gold, Silver, Glass and Enamels, col.pl.357