A FINE AND RARE CELADON-GLAZED OBLONG HEXAGONAL VASE Yongzheng seal mark and of the period (2)A FINE AND RARE CELADON-GLAZED OBLONG HEXAGONAL VASEYongzheng seal mark and of the periodOf hexagonal section, the faceted baluster body sitting on a splayed foot and rising to a waisted neck flanked by a pair of tubular handles, applied overall with an even unctuous celadon glaze, except for the footrim left unglazed and dressed in brown wash, the countersunk base inscribed with the six-character reign mark in underglaze-blue, box. 27.8cm (11in) high. (2).清雍正 冬青釉六方貫耳瓶青花「大清雍正年製」篆書款Provenance:An Asian private collection來源：亞洲私人收藏A development attributed to Tang Ying (1682-1756), the talented superintendent of the Imperial Porcelain Manufactory at Jingdezhen in the Yongzheng and early Qianlong reigns, this particular glaze colour was mentioned on a stele inscribed by him as the lighter shade of the celadon glaze, dong qing, see Zhang Faying ed., Tang Ying du tao wendang [Archive on Tang Ying's Supervision of the Imperial Kilns], Beijing, 2012, p.6. The shape of the present vase is typical of the Yongzheng emperor's taste in revival of archaic prototypes and was fired in several other glazes, such as those of the Five Great Wares of the Song Dynasty: see a related and larger Yongzheng mark and period Guan-type hexagonal vase in the Qing Court Collection, illustrated in Monochrome Porcelain. The Complete Collection of the Treasures of the Palace Museum, Hong Kong, 1999, p.226, no.204; compare also with a larger Yongzheng mark and period Ru-type hexagonal vase in the Nanjing Museum collection, included in Treasures in the Royalty: The Official Kiln Porcelain of the Chinese Qing Dynasty, Shanghai, 2003, p.185.瓶六方，束頸，兩側黏燒貫耳，斜肩，直腹微鼓而下收，圈足略外撇，通施淡青釉，足心書青花「大清雍正年製」篆書款。唐英在《陶成紀事碑記》中記載御窯廠層燒「仿東青釉，有深淺二種」，見張發穎編，《唐英督陶文檔》，北京，2012年，頁6，本件即東青釉較淺一類。此類六面器型亦是雍正仿古佳例，其他釉色瓷器亦有燒造，可比較一件北京故宮藏清雍正仿官釉貫耳六方壺，器型即同本件一樣，見楊靜榮編，《故宮博物院藏文物珍品全集·顏色釉》，香港，1999年，頁226，編號204。又可比較一件南京博物院藏清雍正仿汝釉六方尊，見徐湖平編，《中國清代官窯瓷器》，上海，2003年，頁185。此兩例尺寸較大，本件則體量適中，更為雅緻。