齊家文化玉戚H.21cm,W. 20cm,T. 0.3cm, 520grams《禮記•明堂位》：「季夏六月，以禘禮祀周公於大廟……朱干玉戚，冕而舞大武。」 孔穎達疏：「干，盾也；戚，斧也。赤盾而玉飾斧也。」本器青玉雕琢, 大致呈璧形, 中間為圓孔, 一方呈五角逐曲線, 另一方呈圓弧面, 圓弧面與中央圓孔之間有一小孔, 兩側各有三組齒牙, 古玉跡象為曝露晶面及溶蝕孔.Carved with green tone jade, the object has the shape of bi style zhang. The open end of the blade has four bent sections, the handle has a hole at the center and a smooth curve at the end. On both sides , there are two sets of notches. Antiquity evidences include differential weathering, exposed crystal plane, diffusive markings and dissolved pits.
- quality of jade: 8
- rareness: 8
- historical and cultural significance: 9
- workmanship: 10
- condition: 9