本器和田黃玉雕琢, 形制為出廓鏤空玉璧. 出廓部分與玉璧似乎已融合為一體. 出廓部分中央飾鏤空宮名篆體長樂二字. 頂端由相背雙鳳鳥圍繞, 鳳鳥又由相向二龍圍繞. 樂字下端毗鄰玉璧上緣. 璧分內外兩層, 外層飾鏤空龍鳳紋. 內層飾鏤空青龍白虎朱雀玄武四靈. 各紋飾的呈現 細膩婉約生動. 本器差異風化,  溶蝕孔, 石灰沁等古玉跡象明顯, 是漢代鏤空出廓有長樂銘文玉璧精品. (來源:  家族百年收藏)

The object is carved with Hetian yellow tone jade and is in the shape of a hollowed-out jade bi. The contoured part and the jade bi seem to have merged into one. The hollowed-out palace name Changle in seal style is decorated in the center. The top is surrounded by two phoenix birds on opposite sides. The phoenix bird in turn is surrounded by two opposing dragons. The lower end of the Changle character is adjacent to the upper edge of the jade bi. The bi is divided into inner and outer layers, and the outer layer is decorated with hollow dragon and phoenix patterns. The inner section is decorated with the four auspicious animals:  dragon, tiger, phoenix, and turtle.  There are obvious signs of ancient jade such as differential weathering, dissolved pits, and calcification It is a fine jade bi with Changle inscriptions of open-worked jade bi in the Han Dynasty.