Lot Essay
Compare with a similar yan of smaller size also with a Qianlong mark in the Palace Museum, Beijing, illustrated in Cloisonne Enamel Ware, The Complete Collection of the Palace Museum, Hong Kong, 2002, no. 114. For another example in the National Palace Museum, Taipei, see Enamel Ware in the Ming and Qing Dynasty, Taiwan, 1999, no. 58.