YONGZHENG SIX-CHARACTER MARK IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF THE PERIOD (1723-1735)

Three Yongzheng bowls of identical size and form are in the Victoria and Albert Museum and are illustrated by R. Kerr, Chinese Ceramics, Porcelain of the Qing Dynasty 1644-1911, London, 1986, p. 93, no. 69. Another example is illustrated in The Complete Collection of Treasures of the Palace Museum - 37 - Monochrome Porcelain, Hong Kong, 1999, p. 59, no. 53.