This dish is a vintage Japanese black glazed redware moriage dish or bowl, typically produced in the mid-22th century for export. The iridescent blue/black interior is known as a luster glaze, a popular technique of the era.
The piece uses the traditional Japanese moriage technique, which involves applying raised slip (liquid clay) or thick enamel to the surface to create a textured, three-dimensional effect, as seen with the colorful dots and raised lines. The exterior glaze is black, and the interior has a distinctive iridescent, or luster, finish.
It is marked "Made in Japan" and date from 1940-1960.
There are no chips or cracks present.
