A FINE AND RARE DOUCAI ‘SWALLOW’ CONICAL BOWL AND COVER YONGZHENG SIX-CHARA

A FINE AND RARE DOUCAI ‘SWALLOW’ CONICAL BOWL AND COVER YONGZHENG SIX-CHARACTER MARK IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF 8 3/16 in. (20.8 cm.) diam., Japanese wood box