The chicken bone jade carved disc is of compressed form, the center with a hollow hole, body incised with rounded and wavy patterns, the jade is of bone-white color tone with russet.|||Length: 4 3/4 in (12.1 cm) Width: 3 1/4 in (8.3 cm)|雞骨白幾何紋玉璧|玉質，整體沁色呈雞骨白，圓形玉璧，璧面用平行的陰線雕刻成圓形幾何紋。整件器物紋飾獨特，沁色自然，值得收藏和研究。