YONGZHENG INCISED FOUR-CHARACTER MARK AND OF THE PERIOD (1723-1735)

It is rare to find a double-lozenge shaped vase in gilt-copper, and even rarer with a Yongzheng mark, although lozenge-shaped vases in cloisonné are known, such as a Qianlong example (19.5 cm.) from the collection of Roger Keverne, sold at Bonhams London, 11 May 2021, lot 280, and a smaller vase (16 cm.) as part of a set dated to the mid-Qing period in the Palace Museum, Beijing, illustrated in Compendium of Collections in the Palace Museum: Enamels 4, Beijing, 2011, p. 164, no. 115.