It is interesting to note the blue-tinged glaze has pooled in the carved lines of the design so that the details of the dragon are clearly visible. Although this box appears to be unique, it is reminiscent of the reverse-decorated dragon vases from the Yongzheng period. The closest comparison in style is a baluster vase with an incised dragon gambolling through underglaze-blue clouds, illustrated in Selected Porcelain of the Flourishing Qing Dynasty at the Palace Museum, Hong Kong, 1994, p. 163, pl. 7. A meiping with a moulded and incised dragon leaping through waves on a predominantly blue background is also in the Palace Museum, Beijing, and is illustrated in Kangxi Yongzheng Qianlong, Hong Kong, 1989, p. 178, pl. 7; cf. also pl. 23 for the copper-red version of this vase.