Compare with a few Jiaqing-marked examples, including an almost identical example sold at Christie's Hong Kong, 27 May 2008, lot 1958; another bowl incised with Jiaqing Yushang, 'Appreciated by the Jiaqing Emperor', is in the collection of the Capital Museum, Beijing, illustrated in Jade, Gems of Beijing Cultural Relics Series, Beijing, 2002, p. 202, pls. 239-240. A pair of bowls with reign marks are in the collection of Sir Joseph Hotung, illustrated by J. Rawson in Chinese Jade from the Neolithic to the Qing, British Museum Press, London, 1995, p. 400, pl. 29:13, and also included in the Min Chiu Society exhibition Chinese Jade Carving, Hong Kong Museum of Art, 1983, Catalogue, p. 252, pl. 226.