Treasures of JapanA catalogue of Japan's designated cultural properties 2,690 works catalogued

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Important Cultural Property

Mask

土面
Mask (土面)
PLATE IImage: Tokyo National Museum, via ColBase — CC BY 4.0
At a glance — Archaeological Object · Jōmon period · held by Tokyo National Museum · designated Important Cultural Property of Japan.

Fact Sheet

Designation
Important Cultural Property (重要文化財)
Date
1000–400 BCE
Location
Ueno, Tokyo
Catalogue ID
cobas-114507

Find more

Clay masks first appeared in the mid-Jomon period. Many clay masks dating from the late to the final Jomon period have been found in northern and eastern Japan. This particular type of mask was prevalent in north-eastern Japan during the final Jomon period. The large eyes resemble those found on dogu figurines with goggle-shaped eyes. The spiral-shaped 'irikumimon' pattern on the forehead and cheeks is also reminiscent of the patterns on the bodies of thosedogu figurines. However, the protruding round nose and the clearly-defined lips may represent the features of the wearer. At around ten centimeters in length, though, this mask seems too small to cover a face.

There are also no holes to thread string through, while the rear side of the mask is essentially flat, so it could not have been attached to the face. It is thought instead that the masks were held in the hand and placed against the forehead during rituals. Dogu figurines and stone rods are the most widely-known types of ritual instruments from the Jomon period, but as this mask reveals, the Jomon folk actually used a wide range of tools imbued with a rich variety of prayers. Clay masks were likely used during rituals. This mask has no holes for strings and its back side is flat, suggesting it was not worn on the face, but rather held by hand or other means.

— Museum description: Tokyo National Museum (CC BY 4.0), via ColBase / Japan Search.

Record & Sources

Cite this page: “Mask(土面).” Treasures of Japan, catalogue no. cobas-114507. Tokyo National Museum. https://treasures.yamato-kenkou.com/treasures/mask/ — entry last verified 1 November 2026.
Full record data (as published in the official catalogue record)
  • Genre: Archaeology
  • Material: Earthenware
  • Category: Archaeology:Media:Earthenware, stoneware, porcelain
  • Cultural property designation: Important Cultural Property
  • 員数: 1個
  • 分類: 考古
  • 品質形状: 土製
  • 種別: 考古:材質:土・陶・磁
  • 法量: 長10.6 幅11.4 厚3.6 重量113.5

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