Lot 3722. A pale celadon jade 'Hero' arrow head, 17th century; 10.5 cm, 4 1/8  in. Estimate 150,000 — 180,000 HKD. Lot sold 300,000 HKD. Photo: Sotheby's.

the tubular pebble hollowed and worked in the round, depicting an eagle standing atop a crouching bear, the bird finely detailed with folded wings and neat feathers, below a horizontal ropetwist fillet and cap, the stone of an even pale celadon tone.