A Qingbai six-lobed flower-form teabowl, Northern Song, 960-1127, covered with an unctuous blue-green glaze, supported on a tall foot, base unglazed, 11.4 cm diameter. Provenance: R & V Tregaskis, 6/5/2000. See Kai-Yin Lo 'Bright as Silver White as Snow', 1998, cat no 9