Hidden-Treasures Facts

A family bought a small white bowl for $3 at a yard sale in upstate New York in 2007 and kept it on their living room shelf for six years. It turned out to be a 1,000-year-old Northern Song Dynasty "Ding" bowl - one of only two known to exist. It sold at Sotheby's for $2.2 million. The other one is in the British Museum.