Bowl found to be 1,000-year-old Northern Song Dynasty pottery The 'Ding' bowl. Southebys NEW YORK, March 20 (UPI) -- A New York auctioneer said a 1,000-year-old bowl auctioned for $2.2 million had been purchased at a yard sale for about $3. Cecilia Leung of Sotheby's said the bowl, which measures about 5 inches in diameter, had been purchased by the seller, whose name was not released, at a yard sale in 2007 and displayed in their living room for several years before the owner decided to have it appraised, CNN reported Wednesday. The bowl was found to be a 1,000-year old example of Northern Song Dynasty pottery. The object was purchased by London dealer Giuseppe Eskenazi.