Xi pendants of this type were usually made as pairs and buried in tombs dated to the Eastern Zhou dynasty. Those dated to the Spring and Autumn period resemble the shape of an animal's tooth or fang, while the ones dated to the Warring States period are usually more slender in form. Dragon-shaped pendants were developed from the late Warring States period to early Western Han dynasty. |Compare a similar dragon pendant excavated from the tomb in Beishantou in Anhui Province, dated Western Han dynasty, illustrated by Gu Fang, The Pictorial Handbook of Ancient Chinese Jades, Beijing, 2007, p.240. See also another related example in the National Palace Museum, Taipei, illustrated in Art in Quest of Heaven and Truth – Chinese Jades Through the Ages, Taipei, 2012, p.84, pl.5-5-17; and another in the Aurora Museum, Taipei, illustrated by Tsai Ching-Liang, Jades of Han Dynasty, Taipei, 2005, pl.51.|A greenish-white jade dragon pendant, of similar form with a scrolling dragon atop a crescent-shaped terminal, dated Eastern Zhou dynasty, in the collection of Mr. and Mrs. Malcolm E. McPherson, was sold at Christie's New York, 19 March 2008, lot 479.|青色玉質，有褐色及白色沁。以透雕技法雕一龍回首，身體呈S形，其前爪於鳳鳳頂部，後爪扣踏於鳳身另一側，鳳尾出尖成觽尾。龍尖牙張口，斧形下顎，頸部陰刻花卉紋，鳳身陰刻穀紋，頸部外緣有一穿孔。|觽在春秋、戰國後常常在組玉佩中成對出現，因其衝擊其他玉器而發出聲音，所以亦稱為衝牙。春秋時期的玉觽似獸牙，較為粗短，至戰國時期則出現長角狀或彎曲的龍體。西漢時期的玉觽多有穿孔，基本為裝飾玉，除用於組玉佩之外，亦可作為單體佩飾，此龍鳳形觽即為一例。安徽省巢湖市北山頭西漢墓出土一件龍形玉觽可資比較，見古方，《中國古玉器圖典》，北京，2007年，頁240。另見台北國立故宮博物院藏一件戰國晚期至西漢早期的鳳形佩，見《敬天格物：中國歷代玉器》，台北，2012年，頁84，圖5-5-17。另見震旦博物館藏一件西漢龍紋觽，見蔡慶良，《漢代玉器》，台北，2005年，頁113，圖版51。類似的龍鳳形玉觽，見Malcolm E. McPherson伉儷舊藏一例，後於紐約佳士得售出，2008年3月19日，編號479。