周 鸡骨白精雕特大玉圭玉圭是上古重要的礼器，被广泛用作“朝觐礼见”标明等级身份的瑞玉及祭祀盟誓的祭器。玉圭为不透明牙黄色，上部呈尖角，下部长方形，正面中部凸起似脊线，圭两面下端雕刻一组几何勾连纹饰。钻有一孔。形制之大，琢之精，在传世和出土玉圭中均为罕见，具有极高的收藏价值。Zhou Dynasty, A Rare and Large Chicken-White Jade Large Ceremonial Gui, TabletThe tapered blade ending in a symmetrical and curved tip, carved with beveled edges on both sides, the junction between the blade and the tang pierced by a small drilled hole, the jade naturally speckled and calcified. The blade is decorated on both sides with a register incised with fine swirl pattern in between a geometric border, above a drilled hole.Height: 16⅞ in (42.9 cm) Weight: 475 g