Important Cultural Property
Adz
東之宮古墳 鉄斧
Archaeological Objects · Kofun, Kofun periodKyoto NM
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Important Cultural Property
Mirror
銅鏡（豊前国宇佐赤塚古墳出土）
At a glance — Archaeological Object · Kofun period · held by Kyoto National Museum · designated Important Cultural Property of Japan.
Fact Sheet
- Designation
- Important Cultural Property (重要文化財)
- Category
- Archaeological Objects
- Period
- Kofun period
- Held by
- Kyoto National Museum
- Location
- Higashiyama, Kyoto
- Catalogue ID
- cobas-544
Find more
- Same period
- Kofun archaeological objects →
- At this museum
- All 680 works here →
AkatsukaTumulus is a 57.5-meter-long keyhole-shaped tumulus, located on the hill of Takamori in Usa City, Ôita Prefecture. Built in the early fourth century, it is one of the oldest tumuli in the Kyûshû region. Archeological research in 1921 turned up numerous artifacts from the stone chamber with side entrance in the back of the tumulus, including five mirrors with triangular rims and motifs of animals and gods, cylindrical beads, and fragments of iron swords. The mirrors were all made in China. Similar examples produced from the same cast have been found in other tumuli such as Ishizukayama Tumulus in Fukuoka Prefecture, Tsubai Ôtsukayama Tumulus in Kyoto Prefecture, and Tsutsuno Tumulus in Mie Prefecture.
— Museum description: Kyoto National Museum (CC BY 4.0), via ColBase / Japan Search.
Record & Sources
- Designation: Important Cultural Property (重要文化財), Government of Japan
- Catalogue ID: cobas-544 (permanent)
- Official record: Japan Search — jpsearch.go.jp/item/cobas-544
- Holder's collection: ColBase — Kyoto National Museum
- Photograph: Kyoto National Museum, via ColBase — CC BY 4.0. CC BY 4.0 licence
Cite this page: “Mirror（銅鏡（豊前国宇佐赤塚古墳出土））.” Treasures of Japan, catalogue no. cobas-544. Kyoto National Museum. https://treasures.yamato-kenkou.com/treasures/mirror/ — entry last verified 1 November 2026.
Full record data (as published in the official catalogue record)
- Category: Archaeology:Media:Metal|Archaeology:Region:Japan
- Cultural property designation: Important Cultural Property
- Genre: Archaeological Artifacts
- 員数: 5面
- 分類: 考古
- 種別: 考古:材質:金属|考古:地域:日本
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