The present lot is carved from stone of exceptionally fine quality and of a remarkably good 'mutton fat' white tone.
A lotus vase carved in a very similar style was exhibited at the Victoria and Albert Museum, Chinese Jade Throughout the Ages, Oriental Ceramic Society, London, Catalogue no. 408. Two other vases with similar openwork carvings of birds and flowers in the Capital Museum are illustrated in Jade, Gems of Beijing Cultural Relics Series, Beijing, 2002, pp. 214-215, pls. 263-264.
Compare also a washer dating to the 17th century in the Samuel P. Harn Museum of Art, illustrated in Spinach Green and Mutton-fat White: Chinese Jades of the Qing Dynasty (1644-1911), Florida, 2006, p. 22.