拍品专文
Compare the black pottery jar with similar burnished designs and dated to the Liao dynasty, illustrated by Tsugio Mikami in Sekai Toji Zenshu - 13 - Liao, Jin, Yuan, Tokyo, 1981, p. 162, no. 136, where a brown-glazed vase with shape similar to the present example, also dated to the Liao dynasty, is illustrated, p. 162 no. 137.