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

Compare with two boxes of this pattern, one illustrated in Chinese Ceramics in the Idemitsu Collection, pl. 731; the other in the Museum of Fine Arts, Boston, illustrated in Oriental Ceramics, The World's Great Collections, vol. 11, Tokyo, 1978, pl. 236.