Eastern Zhou Dynasty, 4th-3rd Century B.C.
finely carved on both sides with small comma-spiral shape ‘sprouting grain’ between narrow wedge shape borders, the surface polished to a high gloss, the translucent stone of even olive green color, encrusted with earth and cinnabar from burial.
Diameter 3 5⁄8 inches (9.2 cm)
Compare the similar jade bi disc in the collection of the Freer Gallery of Art, illustrated by Lawton, Chinese Art of the Warring States Period: Change and Continuity, 480-222 B.C., Washington D.C., 1982, p. 170, no. 120.
東周 玉璧 徑9.2厘米