This is a vase with an ice crystal pattern. This is a traditional Japanese technique called "Ice Crack Crazing." It refers to a pattern in ceramic glaze that resembles cracked ice crystals, or the technique itself. This celadon technique intentionally creates fine cracks on the surface of the glaze, giving it the appearance of cracked ice. It displays a beautiful appearance like ice crystals. By applying multiple layers of glaze to create the Crazing effect, the Crazing of the first and second layers overlaps, creating a fantastical look. Traditional Japanese celadon further enhances its beauty. The condition is excellent, with no cracks or chips.