L 8.2 cm. (3 1/4 in.)
Reference: A similar scabbard chape in collection of museum of the Western Han Mausoleum of King of Nanyue, illustrated in The complete collection of jades unearthed in China. Vol.11, Guangdong, Guangxi, Fujian, Hainan, HongKong, Macau, Taiwan, 2005, p.176.