Vases of this type, referred to as denglong zun, are more often found with Jiaqing and Daoguang seal marks, however cf. a Qianlong example from the Grandidier collection, in the Musee Guimet, illustrated in Oriental Ceramics, The World's Great Collections, Kodansha Series, vol. 7, fig. 184; another is illustrated in Keitokuchin Jiki, pl. 88, bottom left, in the Jingdezhen Ceramic Museum.