YONGZHENG SIX-CHARACTER SEAL MARK IN UNDERGLAZE BLUE AND OF THE PERIOD (1723-1735)

Compare to a Qianlong marked blue-glazed meiping, enamelled in the same style with a very similar design, sold at Sotheby’s London, 17 November 1999, lot 787. See also a Qianlong marked flambe-glazed bottle vase in the Musée Guimet collection, accession number G5720, also enamelled with similar design.