Lot Essay
A small group of Yongzheng-marked 'ribbed' vases are recorded, cf. an identical vase of this size and glaze from the Carl Kempe Collection sold at Sotheby's Paris, 12 June 2008, lot 102; and a slightly larger vase of Guan-type glaze (26.2 cm. high) is illustrated by J. Ayers, Chinese Ceramics in the Baur Collection, Geneva, 1999, no. p. 163, no. 269 (A335). Compare also the Song prototypes from which the Qing examples imitate, illustrated in Kuan Ware of the Sung Dynasty, Porcelain of the National Palace Museum, Taipei, CAFA, 1963, pls. 12 (see fig. 1) and 13; the present vase is of the same height as the two Song examples.