A Jizhou leaf-decorated black-glazed bowl, Song Dynasty (960-1279). Estimate HK$800,000 – HK$1,000,000 ($103,635 - $129,544). Photo Christie's Image Ltd 2015

The well potted bowl with rounded sides is covered inside and out with a dark brown glaze. It is further decorated to the interior with a delicate leaf of yellowish-buff and pale brown colour. The glaze ends irregularly in a line above the foot exposing the buff stoneware body. 4 1/4 in. (11 cm.) diam., box 

Christie's. FINE CHINESE WORKS OF ART FROM THE YAOGUSHANFANG COLLECTION, 6 April 2015, 22nd Floor