Tachi, Signed Norifusa: A National Treasure of Japanese Sword Artistry
Among the vast array of Japanese swords designated as National Treasures, the Tachi signed Norifusa (太刀〈銘則房〉) stands as a superb example of the art of the Kamakura period (1185–1333). Forged by the master swordsmith Norifusa, a leading figure of the Katayama Ichimonji school, this magnificent blade embodies the peak of Bizen sword-making tradition. Now housed in the Fukuyama Museum of Art in Hiroshima Prefecture, it offers visitors a rare chance to witness one of Japan's most celebrated swords up close.
The Swordsmith Norifusa and the Katayama Ichimonji School
Norifusa was active during the mid-Kamakura period (13th century) and is regarded as one of the foremost swordsmiths of the Fukuoka Ichimonji school, based in Bizen Province (present-day Okayama Prefecture). Along with Yoshifusa and Sukezane, he was renowned for producing swords with the most splendid chōji-midare (clove-blossom pattern) tempering among the Ichimonji tradition.
Norifusa later relocated from Fukuoka to Katayama, which is why he and his lineage came to be known as the Katayama Ichimonji school. While the traditional view held that Katayama was in Bitchū Province, recent scholarship suggests it may have been a location near Fukuoka in Bizen itself. Regardless of the exact locale, this move marked the beginning of a new branch within the Ichimonji tradition, one that blended the gorgeous aesthetics of the Fukuoka school with subtle influences from neighboring swordsmithing traditions.
Norifusa was honored as one of the "Shikaru-beki Mono" — a select list of sixty top swordsmiths from the Bizen and Bitchū regions whose blades were deemed worthy of being bestowed by the Shogun. Such recognition placed him among the absolute elite of medieval Japanese swordsmiths.
Description and Artistic Characteristics
The tachi is constructed in the shinogi-zukuri (ridgeline construction) style with an iori-mune (gabled back). Although approximately four sun (about 12 cm) has been removed from the tang in a process known as suriage (shortening), the blade still measures an impressive 77.4 cm in length, with a tang of 22.3 cm. Originally, it would have been a formidable weapon of nearly 90 cm — a truly grand tachi reflecting the bold martial aesthetic of the mid-Kamakura period.
Even in its shortened state, the sword retains its commanding presence. The curvature (sori) remains deep, the blade width (mihaba) is generous, and the point (kissaki) takes the distinctive ikubi (boar-neck) form that characterizes the finest swords of this era.
The steel (jigane) is forged in a fine ko-itame (small wood-grain) pattern, tightly knit and healthy, with midare-utsuri (irregular reflections) clearly visible within the blade. The tempering pattern (hamon) displays ō-chōji (large clove blossoms) interspersed with jūka-chōji (layered clove blossoms), with ashi (lines extending into the blade) and yō (leaf-like markings) appearing frequently. Occasional ko-nie (small crystalline particles) add further depth and brilliance to the surface. Some elements of saka-gokoro — a characteristic reverse-slanting tendency in the tempering — are also present, a hallmark often associated with Norifusa's personal style.
Why It Was Designated a National Treasure
This tachi was first designated as an Important Cultural Property on December 14, 1931, and subsequently elevated to National Treasure status on March 31, 1953. The official assessment from the Agency for Cultural Affairs describes it as a work that superbly demonstrates the gorgeous and powerful style of the Ichimonji school at its zenith. Among all surviving signed works by Norifusa, it is considered the finest — the "hakubi" (most outstanding) — with the blade and tempering pattern in remarkably healthy condition.
The sword's significance lies in several factors: its exceptional craftsmanship representing the Katayama Ichimonji tradition, the rarity of signed works by Norifusa, its outstanding state of preservation, and its illustrious provenance through the Tokugawa Shogun family. Together, these qualities make it one of the most important examples of Japanese sword art in existence.
The Tokugawa Shogunal Provenance
The history of this sword is closely intertwined with the Tokugawa shoguns who ruled Japan for over 260 years. In 1707 (Hōei 4), on the occasion of the seventh-night celebration (oshichiya) marking the birth of Iechyo, son of the sixth Shogun Tokugawa Ienobu, the fifth Shogun Tsunayoshi presented this tachi as a congratulatory gift. Another National Treasure sword, the Aizu Shintōgo, was given alongside it at the same celebration.
The blade remained in the possession of the Tokugawa Shogun family for generations, a testament to its extraordinary quality and the esteem in which it was held. In more recent times, it became part of the collection of Yasuhiro Komatsu, founder of FP Corporation (headquartered in Fukuyama), before being donated to the city of Fukuyama by his family following his passing.
The Komatsu Yasuhiro Collection
The tachi signed Norifusa is one of fourteen exceptional swords forming the Komatsu Yasuhiro Collection, which was donated to Fukuyama City in 2018 by Keiko Komatsu, wife of the late Yasuhiro Komatsu. The collection includes seven National Treasures, six Important Cultural Properties, and one Specially Important Sword — making it one of the most significant concentrations of top-ranked Japanese swords in any single public museum in Japan.
The collection also features such renowned blades as the National Treasure tachi signed "Chikushū-jū Sa" (known as Kōsetsu Samonji), National Treasure tachi signed Yoshifusa, and the National Treasure short sword known as "Juraku" (Taikō Samonji). The donation was motivated by the Komatsu family's desire to make the finest Japanese swords accessible to the people of Fukuyama and to attract sword enthusiasts from across the nation to the city.
Highlights and Viewing Tips
When viewing this National Treasure tachi, keep the following points in mind to enhance your appreciation:
- The Hamon (Tempering Pattern): Look for the gorgeous chōji-midare pattern — the clove-blossom shapes that rise and fall like a field of flowers. Notice how layered clove forms (jūka-chōji) create an almost three-dimensional visual effect along the blade's edge.
- The Saka-gokoro: Norifusa's signature reverse-slanting tendency in the tempering pattern distinguishes his work from other Ichimonji smiths. Watch for subtle areas where the pattern seems to lean in the opposite direction.
- The Utsuri (Reflections): Under proper lighting, look for the ghost-like reflections (midare-utsuri) that appear in the body of the blade above the hamon. These are a hallmark of Bizen-tradition swords.
- The Overall Form: Despite being shortened, the blade's bold curvature, wide body, and ikubi kissaki convey the grandeur of a mid-Kamakura period masterwork.
- The Signature: On the tang, you can see the characters "則房" (Norifusa), though the lower portion of the character "房" has been partially cut away during the shortening process.
The Fukuyama Museum of Art typically holds sword exhibitions once every one to two years, during which items from the Komatsu Collection are displayed. As specific swords on display rotate, it is advisable to check the museum's website or contact them directly before visiting to confirm whether this particular tachi is currently on view.
Fukuyama Museum of Art and Surroundings
The Fukuyama Museum of Art is located within Fukuyama Castle Park, just a five-minute walk from JR Fukuyama Station's north exit. The museum's collection encompasses European modern and contemporary art, Japanese modern painting, and an outstanding collection of Japanese swords and tea ceremony utensils. Its striking red "Arch of Love" sculpture at the entrance has become a local landmark.
While visiting the museum, be sure to explore the surrounding Fukuyama Castle Park area. Fukuyama Castle, one of the few castles in Japan with an original structure from the Edo period, stands adjacent to the museum and houses its own historical exhibits. The Hiroshima Prefectural Museum of History (Fukuyama Kusado Sengen Museum), located about 150 meters from the art museum, offers fascinating insights into the medieval port town of Kusado Sengen. The charming historical port town of Tomonoura, a 30-minute bus ride from Fukuyama Station, is also highly recommended for its beautifully preserved Edo-period streetscape and seaside scenery.
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Q＆A
- Is the tachi signed Norifusa always on display at Fukuyama Museum of Art?
- No. Due to conservation requirements, the swords in the Komatsu Collection are displayed on a rotating basis. The museum typically holds sword exhibitions once every one to two years. Please check the museum's official website or contact them at 084-932-2345 to confirm whether this specific sword is currently on view before planning your visit.
- Is English-language support available at the museum?
- The museum provides some English signage for its permanent exhibits. For special exhibitions, multilingual information may vary. The museum staff can assist with basic inquiries, and printed English guides may be available at the reception desk.
- How do I get to Fukuyama Museum of Art from major cities?
- Fukuyama is conveniently served by the Sanyo Shinkansen. From Hiroshima, it takes about 25 minutes; from Osaka, approximately 1 hour 20 minutes; and from Tokyo, about 3 hours 30 minutes via Nozomi. The museum is a 5-minute walk west from JR Fukuyama Station's north exit.
- What is suriage (shortening), and why was it done to this sword?
- Suriage refers to the practice of cutting down the tang of a tachi to shorten the overall blade length. This was commonly done during the Muromachi and later periods as fighting styles shifted from mounted combat to ground-based warfare. Shorter blades were more practical for close-quarters fighting. The tachi signed Norifusa was shortened by about four sun (approximately 12 cm), reducing it from its original length of nearly 90 cm.
- Are there other National Treasure swords I can see at Fukuyama Museum of Art?
- Yes. The Komatsu Yasuhiro Collection held at the museum includes seven National Treasure swords in total. Notable examples include the tachi signed "Chikushū-jū Sa" (known as Kōsetsu Samonji), the tachi signed Yoshifusa, the tachi signed Masatsune (Hachisuka Masatsune), and the short sword known as "Juraku" (Taikō Samonji). Display schedules vary, so please confirm in advance.
Basic Information
| Name | Tachi, signed Norifusa (太刀〈銘則房〉) |
|---|---|
| Designation | National Treasure (Craft / Metalwork) |
| Period | Kamakura period (13th century) |
| Swordsmith | Norifusa (Katayama Ichimonji school) |
| Blade Length | 77.4 cm |
| Tang Length | 22.3 cm |
| Curvature (Sori) | Approximately 3.2 cm |
| Important Cultural Property Designation | December 14, 1931 |
| National Treasure Designation | March 31, 1953 |
| Owner | Fukuyama City |
| Location | Fukuyama Museum of Art, 2-4-3 Nishimachi, Fukuyama City, Hiroshima Prefecture 720-0067 |
| Museum Hours | 9:30 AM – 5:00 PM (Last entry 4:30 PM) |
| Closed | Mondays (or the following day if Monday is a holiday), Year-end / New Year holidays |
| Admission (Permanent Collection) | Adults ¥310; groups of 20+ ¥250; free for high school students and younger |
| Access | 5-minute walk from JR Fukuyama Station North Exit (west direction) |
| Phone | 084-932-2345 |
| Website | https://www.city.fukuyama.hiroshima.jp/site/fukuyama-museum/ |
References
- 小松安弘コレクションについて - 福山市ホームページ
- https://www.city.fukuyama.hiroshima.jp/site/fukuyama-museum/194068.html
- 国宝-工芸｜太刀 銘 則房［ふくやま美術館/広島］ | WANDER 国宝
- https://wanderkokuho.com/201-00383/
- 福岡一文字 - Wikipedia
- https://ja.wikipedia.org/wiki/%E7%A6%8F%E5%B2%A1%E4%B8%80%E6%96%87%E5%AD%97
- 施設利用案内 - ふくやま美術館 - 福山市ホームページ
- https://www.city.fukuyama.hiroshima.jp/site/fukuyama-museum/2912.html
- 国指定文化財等データベース
- https://kunishitei.bunka.go.jp/heritage/detail/201/383
- 備前伝の流派 - 刀剣ワールド
- https://www.touken-world.jp/tips/7912/
Last verified: 2026.03.21