This item is an unmarked white spiral opalescent bowl with a Jack-In-The-Pulpit style rim. The piece is 3 1/2" at it's highest rim point, 5/8" at the lowest, 10" in diameter, by 2 7/8" across the foot. The clear body of the bowl has sixteen white opalescent stripes swirled internally as decoration. The bowl has several straw marks from manufacture, but there are no chips or cracks. Please feel free to contact us with any questions or to make an offer.