Excavated from Kiln No.2, Kozoji, Kasugai-shi, Aichi
8th century
Height 91cm, mouth diameter 5.8cm, body diameter 12.0cm, bottom diameter 7.3cm
Aichi Prefectural Ceramic Museum
Flat-bottomed vases began to show a trend toward flat bottoms in the late 7th century, but by the 8th century, they had flattened bodies with ridges on the shoulders and upright mouth necks.
In particular, the flattening of flat bottles made by the Tōyō kiln in the late 8th century is remarkable. The base of this vessel is a grayish-white, highly refractory clay with a high firing temperature.