Final answer:
The type of jar is Sanage ware or Sanage-yaki, which were produced during the Heian period in Japan. These pottery types are known for their simple patterns and fine clay surface.
Step-by-step explanation:
The type of jar in question is Sanage ware or Sanage-yaki.
Sanage ware is a type of pottery that was produced during the Heian period in Japan. It is known for its simple patterns and fine clay surface.
Sanage-yaki refers to pottery made in the Sanage kiln, which is located in Aichi Prefecture, Japan. It is characterized by a reddish-brown glaze and geometric patterns.