The Jazz Bowl sold for over five times estimate at the Rago Arts and Auction Center last week. The Viktor Schreckengost masterpiece brought $158,600. It was a parabolic bowl, not one of the later flared-rim bowls (the original shape warped in the kiln, so Schreckengost changed the shape). The three original bowls made for Eleanor Roosevelt in 1933 were covered with a thin layer of black clay, then the design was scratched through it. Later bowls were decorated using a simpler method. The Jazz Bowl became famous again in the 1980s when one sold for $28,000. Prices have gone up ever since.