This item is an unmarked piece of Fostoria Glass in the Heirloom design done in blue opalescence. The piece is 4 1/4" at it's highest point, 8 1/4" across the corners, with a 1 7/8" diameter foot. The body is light blue with opalescence around the rim, down the ribs on the sides, with a milky pool in the center of the bottom. The piece has no wear or damage of any type. Please feel free to contact us with any questions or to make an offer.