Treasures of JapanA catalogue of Japan's designated cultural properties
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Important Cultural Property

Blade for a Long Sword ("Tachi")

太刀
Blade for a Long Sword ("Tachi") (太刀)
PLATE IImage: Tokyo National Museum, via ColBase — CC BY 4.0
At a glance — Swords & Armour · Kamakura period · held by Tokyo National Museum · designated Important Cultural Property of Japan.

Fact Sheet

Designation
Important Cultural Property (重要文化財)
Date
1330
Location
Ueno, Tokyo
Catalogue ID
cobas-74923

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Inscriptions on the tang (the part to which the grip is attached) can provide valuable information about a blade's origins. The swordsmith Yoshitsugu engraved this blade with an unusually long inscription, proudly noting his name, affiliation, province, and the date he created the blade (the fifth month of 1330).

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

Record & Sources

Cite this page: “Blade for a Long Sword ("Tachi")（太刀）.” Treasures of Japan, catalogue no. cobas-74923. Tokyo National Museum. https://treasures.yamato-kenkou.com/treasures/blade-for-a-long-sword-tachi-74923/ — entry last verified 1 November 2026.
Full record data (as published in the official catalogue record)
  • Category: Applied arts:Arms and armor:Blades:Tachi
  • Genre: Arms & Armor
  • Cultural property designation: Important Cultural Property
  • 員数: 1口
  • 分類: 刀剣
  • 種別: 工芸:武器・武具:刀剣:太刀
  • 銘文等: 銘 備中国青江住右衛門尉平吉次作／元徳二年五月日

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刀 金象嵌銘 城和泉守所持 正宗磨上 本阿（花押）
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