KANGXI SIX-CHARACTER MARKS IN UNDERGLAZE BLUE WITHIN A DOUBLE CIRCLE AND OF THE PERIOD (1662-1722)

Compare the current bowls to an almost identical single bowl in the Percival David Collection at the British Museum, museum number PDF, B.665.
Another bowl of this type is in the collection of the Shanghai Museum and is illustrated in Kangxi Porcelain wares from the Shanghai Museum Collection, Hong Kong, 1998, p. 110, no. 73.