Western Han Dynasty, Dian culture|The curving blade cast with geometric pattern and swirls leading to a pair of forked wings, the shaft set with two narrow rectangular slits for attachment. 21.7cm (8 5/8in) long|西漢滇文化 青銅漩渦紋曲援戈Provenance: the Sze Yuan Tang collection, acquired in Hong Kong circa 1980s-1990s來源： 思源堂收藏，於約1980至1990年代購自香港Compare a similar bronze halberd blade, excavated from Jiangchuan, Yunnan Province, illustrated in The Complete Works of Yunnan National Fine Arts. Bronze Arts of the Dian Kingdom, Kunming, 2000, p.123, no.113.