A PAIR OF CLOISONNÉ ENAMEL VASES Qianlong marks and of the period (2)A PAIR OF CLOISONNÉ ENAMEL VASESQianlong marks and of the periodEach of lobed baluster form, decorated with large and small peony flowers and luxurious leafy vines over turquoise ground, a band of white ruyi pattern around the rim and a wide band of white lappets around the foot, carved on the base with a four-character Qianlong reign mark above the additional character 'ze' (則). 14 1/8in (35.9cm) high (2).清乾隆 《乾隆年製》《則》款 天藍地嵌絲琺琅橄欖形瓶一對Compare the very similar pair of cloisonné enamel vases, also with Qianlong marks above the additional character 'ze', illustrated by Brinker and Lutz, Chinese Cloisonné: The Pierre Uldry Collection, Asia Society, New York, 1989, no. 282; where the authors note on p. 74 "During the Qianlong period (1736-96) an additional character, the significance of which is obscure, is occasionally found below the usual mark." The authors go on to suggest the 'ze' character may be an indication of the use or category of the object on which it is inscribed.