Carved with yellow tone Hetian jade, this bi is decorated crop sprouts on both sides. The edge of the bi has sharp angle with multi-level planes which is quite different from single level plane. This fact may reflect the advancement of harder tools and more skillful technique of the Han Dynasty. Antiquity evidences include diffusive marking and differential weathering.Some researches believe that the ritual jade bi relates to the celestial body such as the black hole (image of lower left is one scene of the black hole published in internet.).
perpetual happiness palace
Jade Bi Disk, H.10cm, W.7cm, T.0.6cm, 65grams. This object of jade bi is designed to express three major sections: The outer ring with connected cloud of the bi-disk, the inner open work with one side seen “eternal happiness(長樂)” inscription( Changlegong is the name of the palace of the Han Dynasty), the other side seen dragon and phoenix motif, the dragon form attached on the top edge of the outer ring. The object may be used as a pass for entry to the palace of Chanlegong . With mastery workmanship, this bi disk is pervasively populated with various archaic elements including cleaving veins, additive crystals and differential weathering.本器青玉雕琢, 玉璧上端為出廓龍紋, 雙面雕琢,一面為隸書體長樂, 一面為龍鳳紋,玉璧表面飾陰線勾聯雲紋, 古玉跡象為增生晶體及冰裂紋.此玉璧可能是作為長樂宮之信符.
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.