Two qingbai bowls, Southern Song dynasty, 19.5 cm diam., 18.7 cm diam. (2). Provenance: Duncan Macintosh collection. Sotheby's Australia, Sydney, 16 April 2014, lot 195. Exhibited: Hong Kong Ceramic Society (label). Duncan Macintosh was a founder of the Hong Kong Ceramic Society and an author, most noted for his study of Chinese blue and white porcelain. . . Duncan Macintosh