Lot 3120. A small Northern 'oil spot' black-glazed bowl, Northern Song-Jin dynasty, 12th century. Estimate HK$80,000 – HK$150,000 ($10,347 - $19,401). Photo Christie's Image Ltd 2016. 

The bowl is delicately potted with rounded sides, covered inside and out in a lustrous black glaze falling irregularly above the foot. The interior is decorated with five roundles of large purplish silver 'oil spots' against a dense ground of fine 'oil spots', all below a band of large 'oil spots'. The exterior is with a band of large 'oil spots' above a dense pattern of fine 'oil spots'. 3 1/4 in. (8.4 cm.) diam., box 

Christie's. CLASSICAL CHINESE ART FROM THE SUI TO THE SONG DYNASTIES, 1 June 2016, Convention Hall