Lot Essay
A similar example was included in the exhibition, Chinese Art of the Warring States Period, Freer Gallery of Art, 1982, and illustrated in the Catalogue, fig. 107. Several others are in the Sonnenschein Collection, illustrated by Salmony, Archaic Chinese Jades, The Art Institute of Chicago, 1952, pl. XCI:7 and pl. XCII:1, 2