Top 10 Chinese art works sold at auctions for 2013 (6)

（Chinadaily.com.cn）  08:34, July 11, 2013  

6. A white jade seal that was tailor made to celebrate Qing Emperor Qianlong's 80th birthday was sold for 66.7 million yuan ($10.9 million) at the China Guardian Auction on May 12. The seal features a crossing-double dragon-shaped knob and the incised characters of "zi qiang bu xi" (which literally means making ceaseless efforts to improve oneself), and once belonged to French industrialist and collector Emile Guimet.