拍品专文
Compare a Guanyao cup of similar shape, referred to as a brushwasher, included in the exhibition, The Arts of the Sung Dynasty, Oriental Ceramic Society, London, 1959-60, vol. 32, pl. 63, no. 164. See, also, the slightly smaller (10.5 cm.) example sold in these rooms, 15 September 2009, lot 322.