Lot 81. A black jade 'Turtle' seal, Six Dynasties (220–589); h. 3 cm, 1 ⅛ in. Estimate: 60,000 - 80,000 HKD. Lot sold 69,300 HKD. Courtesy Sotheby's. the opaque jet-black square seal carved in high relief with a turtle, the area between the turtle's legs...