Rose Kerr (ed), Chinese Art and Design, London: Victoria and Albert Museum, 1991, nr.6, photo pp. 32-33.
Ming S.Wilson, 'Liangzhu Jades Rediscovered' in Oriental Art, Winter 1995/96, pp.2-8.
Ming Wilson, Chinese Jades, 2004, no.5
Dark green with brown marking. A cong of 15 sections, drilled from both ends, the meeting point in the middle is no more than 3cm in diameter. One of the tallest cong known to date. On the collar (called she in Chinese) at the top is incised the faint outline of the wings and head of a bird. However it is not done in short, repeated strokes as in the case of A42-1936 bi.
James Watt opinion 11/6/1987: Neolithic. Unique in that only one he knows of that is unfinished, i.e had blocked in end.
A 'cong' is a jade tube that is square on the outside with a round perforation in the middle. An ancient Chinese text entitled ' Zhouli' ('Rituals of Zhou') describes the 'cong' as a ceremonial object to sacrifice to Earth. However, the 'cong' was made at least a thousand years before the 'Zhouli' was written and its function in prehistoric times remains unknown.