14th century
Height 15.4cm, Mouth diameter 15.0-17.3cm, Body diameter 20.8-22.0cm, Bottom diameter 14.2cm
Tokoname City Ceramic Art Research Institute
　This is a small jar with a body in the shape of an arithmetic sphere. Each of these small jars has a wide base and is highly stable. The clay is rich in iron-rich sand, and the oxidized firing process gives them a brownish-brown color. Two seals are formally stamped on the shoulders.
