Lot 16. The Au Bak Ling Collection. A very rare celadon-glazed double-gourd vase, Yongzheng six character archaistic seal mark in underglaze blue and of the period (1723-1735) ; 32.8 cm high. Price realised HKD 4,410,000 (Estimate HKD 3,000,000-5,000,000)....