China, Yongzheng period (1723-1735) Rare pair of porcelain bowls with "Birthday" decoration in Doucai enamels. Six-character mark and Yongzheng period. Diameter: 15.3 cm (A slight chip forming a crack and a crack to one) Reference: a similar bowl sold for $116,500 at Christie's on 15 September 2011, lot no. 1548.