A similar pair of bowls sold in our Hong Kong Rooms, 17th January 1989, lot 775.
The Chinese University of Hong Kong, Imperial Porcelain of Late Qing, Kwan Collection, 1983, Catalogue, no. 27
National Museum of History, Taipei, Imperial Porcelain of late Ch'ing, From the Kwan Collection, 1985, Catalogue, no. 27