![Black pottery: bowls.](https://turuta.jp/ceramics-story/wp-content/uploads/sites/6/2023/11/ysf_10307_4-300x300.jpg)
![Black pottery: bowls.](https://turuta.jp/ceramics-story/wp-content/uploads/sites/6/2023/11/ysf_10307_3-300x300.jpg)
Excavated on the ruins of Taga Castle, Tagajo-shi, Miyagi. 10th century.
10th century.
(left) height: 4.1cm, diameter: 12.6cm (right) height: 4.1cm, diameter: 13.6cm
Tagajo City Board of Education
This shallow flat-bottomed bowl has a jet-black luster, with carbon grains adsorbed only on the inner surface and the surface polished. There are two types of black earthenware: Class A, in which only the inner surface is blackened, and Class B, in which both the inner and outer surfaces are blackened.