Cf. similar vases in the National Palace Museum, Taibei, illustrated in the Catalogue of Ch'ing Dynasty Porcelain, Ch'ien Lung and Other Wares, pl. 27; in the Metropolitan Museum of Art, illustrated by Valenstein, Handbook of Chinese Ceramics, pl. 165; in the Tokyo National Museum, Catalogue no. 640; in the British Museum, illustrated by Hobson, The Later Ceramic Wares of China, pl. LXV; and in the de Young Memorial Museum in San Francisco, illustrated in the Brundage Collection Catalogue, pl. LXXV.