A staff member walks past an oil painting of Zhang Xiaogang on a press conference of the Christie's autumn auction preview event in south China's Hong Kong, Nov. 14, 2012. The auction will be held in Hong Kong from Nov. 24 to Nov. 28. (Xinhua/Lui Siu Wai)
A staff member shows an artwork of Qing Dynasty (1644-1911), on a press conference of the Christie's autumn auction preview event in south China's Hong Kong, Nov. 14, 2012. The auction will be held in Hong Kong from Nov. 24 to Nov. 28. (Xinhua/Lui Siu Wai)
A staff member stands beside a painting of Xu Beihong on a press conference of the Christie's autumn auction preview event in south China's Hong Kong, Nov. 14, 2012. The auction will be held in Hong Kong from Nov. 24 to Nov. 28. (Xinhua/Lui Siu Wai)
A staff member shows a brush pot of Qing Dynasty (1644-1911), on a press conference of the Christie's autumn auction preview event in south China's Hong Kong, Nov. 14, 2012. The auction will be held in Hong Kong from Nov. 24 to Nov. 28. (Xinhua/Lui Siu Wai)Artworks were exhibited on a press conference of the Christie's autumn auction preview event in south China's Hong Kong, Nov. 14, 2012. The auction will be held in Hong Kong from Nov. 24 to Nov. 28.