Set of six crystal game pieces for use in the game of Liubo (Lục bác).  From the tomb of Triệu Văn Đế (Emperor Zhao Mo) of Nanyue kingdom (r.137–122 BCE).
<a href="//commons.wikimedia.org/wiki/User:BabelStone" title="User:BabelStone">BabelStone</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>