Lot Essay
There are both marked and unmarked examples of washers of this type. Compare, for example, to a pair of Yongzheng-marked washers of almost identical design, form and size, from the Dr. James D. Thornton Collection, sold at Christie’s Hong Kong, 29 November 2017, lot 2807, for HK$9,100,000. Compare also to a pair of unmarked examples sold at Christie’s London, 15 December 1983, lot 484.