戰國或以後 雞骨白玉雙龍首玉璜 The arc-shaped pendant is carved with a dragon's head with a split mouth on both ends with a conjoined body,carved with comma spirals on both side and pierced with a suspension hole to the center. The semi-translucent stone is of celadon tone with extensive areas of white calcifications. Warring state period or later. Height: 2 3/8 in (6.0 cm) Width: 2 7/8 in (7.3 cm) Provenance: From an archaeologist's private collection,Boston,Massachusetts. 來源：麻州波士頓考古學家收藏