Buyers bid for a blue-and-white vase of ancient China\'s Ming Dynasty (1368-1644) in Hong Kong, south China. The vase fetched 168.66 million Hong Kong dollars, setting a new record at auction for porcelain from the Ming Dynasty. The Sotheby\'s auction was held in Hong Kong Convention and Exhibition Center on Wednesday. The total business volume for 32 artworks was 560 million Hong Kong dollars.