The design of the object is similar to unearthed in 1983,Graveyard #50,Zhang Jia Po, Chang An County, Shanxi Province. A collection of Chinese Academy of Social Science.)Notched Bi, D. 8cm, Longshan Culture, Unearthed from Li Village, Teng County, Shangdon Province,China 1978, a collection of Museum of Teng County, Shangdon Province. Antiquity evidences include additive crystal and differential weathering.龍山文化牙璧, D.15cm. 本器與中國山東省滕縣博物館藏山東省滕縣里庄1978出土龍山文化徑8cm玉多齒三牙璧之造型(如插圖)雷同.本器曝露晶面古玉跡象明顯.