Ō-Kanehira
大包平
National TreasureTachi sword — Heian period
National Treasure
Ō-Kanehira
大包平
- Type
- Tachi sword
- Period and date
- Heian period, 12th century
- Artist
- Kanehira
- Material
- Steel
- Collection:
- Tokyo National Museum
03 — Overview
A tachi thought to date from the 12th century, officially designated as “Tachi, inscribed Bizen no kuni Kanehira saku (known as Ō-Kanehira)”. Counted among the finest Japanese swords in existence, it is paired with Dōjigiri as the two yokozuna of the blade.
04 — Object data
- Designation
- National TreasureSource ↗
- Type
- Tachi sword
- Category
- Swords
- Inscription (mei)
- Bizen no kuni Kanehira saku
- Swordsmith
- Kanehira
- Period
- Heian period
- Date
- 12th century
- Place of origin
- Bizen Province (per inscription) — Okayama
- Material
- Steel
- Collection
- Tokyo National Museum ↗
10 — Gallery
13 — Related objects
Dōjigiri Yasutsuna
Dōjigiri Yasutsuna
Tachi sword — Heian· National Treasure
Okadagiri Yoshifusa
Okadagiri Yoshifusa
Tachi sword — Kamakura· National Treasure
Mikazuki Munechika
Mikazuki Munechika
Tachi sword — Heian· National Treasure
Terasawa Sadamune
Terasawa Sadamune
Tantō dagger — Kamakura· National Treasure
14 — Sources & references
- [1]大包平
文化庁 国指定文化財等データベース · Government · Supports: Designation, Name
- [2]https://colbase.nich.go.jp/collection_items/tnm/F-19932
Museum · Museum · Supports: Collection, Description
- [3]Wikidata Q11433080
Wikidata · Database · Supports: Name, Date, Maker, Collection · Accessed 2026-09-25
- [4]大包平
Wikipedia（日本語版） · Encyclopedia · Supports: Description · Accessed 2026-09-25
- [5]File:大包平, Okanehira.jpg
Wikimedia Commons · Image host
- [6]File:Tati Okanehira sword.jpg
Wikimedia Commons · Image host
- [7]File:Ō-Kanehira haki-omote.jpg
Wikimedia Commons · Image host
- [8]File:Ō-Kanehira haki-ura.jpg
Wikimedia Commons · Image host
15 — Image credits
大包平, Okanehira
- Creator / Photographer
- SLIMHANNYA
- Source
- Wikimedia Commons — File:大包平, Okanehira.jpg ↗
- Credit
- Own work
- Licence
- CC BY-SA 4.0 ↗
Tati Okanehira sword
- Creator / Photographer
- Association of Cultural Properties、Japan
- Source
- Wikimedia Commons — File:Tati Okanehira sword.jpg ↗
- Credit
- Portfolio of National tresures Volume 1st, Association of Cultural Properties, Tokyo, 1952-03-30
- Licence
- Public domain
Ō-Kanehira haki-omote
- Creator / Photographer
- 国立文化財機構
- Source
- Wikimedia Commons — File:Ō-Kanehira haki-omote.jpg ↗
- Credit
- ColBase: Integrated Collections Database of the National Museums, Japan: online database: entry tnm/F-19932
- Licence
- CC BY 4.0 ↗
Ō-Kanehira haki-ura
- Creator / Photographer
- 国立文化財機構
- Source
- Wikimedia Commons — File:Ō-Kanehira haki-ura.jpg ↗
- Credit
- ColBase: Integrated Collections Database of the National Museums, Japan: online database: entry tnm/F-19932
- Licence
- CC BY 4.0 ↗