QIANLONG SIX-CHARACTER SEAL MARK IN UNDERGLAZE BLUE AND OF THE PERIOD (1736-1795)

This design and colour combination appears to be based on porcelains from the Kangxi period, such as the dish illustrated in Mayuyama, Seventy Years, vol. I, Tokyo, 1976, no. 1047, p. 349. A similar dish is illustrated by Shincho Kogei No Bi, New York, 1995, pl. 126, p. 45 or by Qian Weipeng in Tian Wu Guan Cang Ci, Shanghai, 2011, vol 1, pp. 198/9.
Another Qianlong mark-and-period dish with similar design was sold at Christie's New York, 17-18 March 2016, lot 1600.