A 'Jun' sky-blue glazed 'Lotus-bud' waterpot, Northern Song-Jin dynasty. Estimate 40,000 — 60,000 HKD (4,532 - 6,798 EUR).  Photo Sotheby's

with rounded sides tapering to a narrow mouth, supported on a neatly cut footrim, applied overall with a smooth pale blue glaze thinning to a mushroom tone at the rim and falling short above the foot revealing a greyish ware burnt to orange in the firing - 
width 9.5 cm., 3 3/4  in.

Sotheby's. Chinese Art, Hong Kong, 03 déc. 2015, 02:00 PM