YONGZHENG SIX-CHARACTER MARKS IN UNDERGLAZE BLUE WITHIN DOUBLE CIRCLES AND OF THE PERIOD (1723-1735)

A single dish of this pattern, in the National Palace Museum is illustrated in The Special Exhibition of Qing Monochromes, Taipei, 1981, cat. no. 45; another pair is illustrated by Regina Krahl, Chinese Ceramics from the Meiyintang Collection, London, 1994-2010, vol. 2, no. 892., sold at Sotheby's Hong Kong, The Meiyintang Collection, Part IV, 8 October 2012, lot 7.