Lot 3135. A small Huairen black-glazed russet ‘oil spot’ bowl , Northern Song-Jin dynasty (960-1234), 3 1/8 in. (7.9 cm.) diam., box. Estimate HKD 80,000 - HKD 150,000. Price realised HKD 200,000 © Christie's Images Ltd 2017

The bowl is covered with a thick black glaze splashed liberally with russet ‘iron spots’ of various sizes, above a thin brown glaze stopping above the purple-dressed foot and body. 

Christie's. The Imperial Sale / Important Chinese Ceramics and Works of Art, 31 May 2017, Convention Hall