WANLI SIX-CHARACTER MARK IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF THE PERIOD (1573-1619)

A related Wanli-marked example is illustrated in The Complete Collection of Treasures of the Palace Museum, Blue and White Porcelain with Underglaze Red (II), Hong Kong, 2000, pl. 109. Other examples are illustrated in Chinese Ceramics in The Idemitsu Collection, Japan, 1987, fig. 732; one from the Toguri Collection, illustrated in Sekai toji zenshu, vol. 14, Tokyo, 1976, pl. 103, which was sold at Sotheby's London, 9 June 2004, lot 43.