Like the crest of an ocean wave, this opalescent art glass dish is remarkable! The center square is a milky white, and the handkerchief edges stretch out into iridescent clear-to-blue tips, rolling in even waves on all four sides. Gorgeous! Use for candy, nuts, as a candle holder, or simply as a beautiful display with strategic lighting to highlight the ocean effects. Stamped, but I can’t identify the mark. It is similar to Fostoria. Approx 7”x7” Weighs 1.9 lbs Pre-owned; excellent vintage condition. I can see no flaws. Shipped with care.