A Chinese blue and white circular seal box and cover , Qing Dynasty, 19th century, painted with a dragon chasing a flaming pearl, with apocryphal six character Xuande mark in underglaze blue, 6cm diameter x 3.7cm highProvenance: ‘Mr. Ko’ acquired this in Tsinan in 1927 and then by direct family descent. 'Mr Ko' worked for the Chinese Postal Service in China from 1904-1947.清 青花龙戏珠纹印盒（带盖）拍品来源：中国邮政公司高级官员柯先生（生于意大利）于 1927年购于天津 the glaze with extensive crazing throughout