Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
NihontoWatchNihontoWatchA vivid, lively gunome-midare hamon over a clear, tight itame-hada, from a master famed for uniting supreme cutting power with refined artistic beauty We are pleased to present an exceptional unsigned Shinshintō-era tantō, attributed directly to the legendary master Koyama Munetsugu (固山宗次) on its historic 1951 registration certificate. Officially designated in March 1951 (Shōwa 26) by the Cultural Properties Protection Committee (Bunkazai Hozon Iinkai, the predecessor to the modern Agency for Cultural Affairs) during Japan's famed early post-war "daimyō registration" period, this blade possesses extraordinary historical value and stands fully prepared for immediate appreciation. On the smith — Koyama Munetsugu (固山宗次) Koyama Munetsugu was one of the undisputed titan swordsmiths of the late Edo (Shinshintō) period. Renowned not only for his gorgeous, artistic Bizen-style swords, Munetsugu was obsessed with practical performance. He personally studied tameshigiri techniques and worked closely with the famous executioner and sword tester Yamada Asaemon to perfect his steel. His blades were celebrated for achieving a rare harmony of extraordinary cutting power (saidan-mei) and refined aesthetic beauty, earning him a reputation that rivaled or even surpassed the top master testers of his time. Provenance and historical registration This dagger carries a distinct historic provenance. It was registered in Tokyo in March 1951 by the Cultural Properties Protection Committee, and this early registration directly attributes the unsigned work to Koyama Munetsugu. Export notice: As required by Japanese law, the original physical daimyō registration card must be surrendered to the Board of Education upon international export. However, a high-resolution copy can be provided with your order upon request (please leave a note during checkout). Workmanship and condition The blade is preserved in flawless, pristine condition, entirely free of nicks, rust, or chips. Fully polished to a fine sheen, the steel presents a clear, tight itame-hada (wood-grain pattern) filled with active, shimmering chikei (dark lines within the steel) and yubashiri (spilling nie). The hamon is a dynamic, irregular gunome-midare (irregular clove-shaped pattern), bounded by a vivid, sharply defined nioiguchi (temper-edge boundary). The bōshi (tip temper) enters with lively activity (midare-komi), completing a well-balanced and energetic temper line. Form A beautifully proportioned hira-zukuri tantō with no curvature (mu-sori, 0.0 cm). Measuring 19.7 cm in length, with a well-balanced thickness of 6.1 mm against a width of 22.5 mm, it offers a sleek, classical shape that highlights the high-level forging skill of the late Edo period. The mounting (shirasaya) The blade is housed in a shirasaya (plain wood resting scabbard). A pristine Shinshintō tantō attributed to Koyama Munetsugu by Japan's official Cultural Properties Protection Committee during the historic 1951 registration. Boasting flawless health, vivid steel activity, and supreme historical pedigree, this is a truly unique addition to any high-caliber Japanese sword collection.
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Shinshinto · Musashi
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Born in Kyōwa 3 (1803) at Shirakawa in Ōshū, Koyama Munetsugu (固山宗次) carried a smith's name read variously in the setsumei as Munobei or Sōbei, working under the art-names Issensai and Seiryōsai. He came up alongside elder brothers Munehira and Munetoshi, and although his teacher is traditionally given as Katō Tsunahide, the NBTHK readers repeatedly note that the hand of Katō Tsunatoshi shows through his work more plainly. He first served the Matsudaira house of Shirakawa as a retained smith; when that domain was transferred to Kuwana in Ise, he settled in Edo at Azabu Nagasaka and forged as a Kuwana domain smith. In Kōka 2 (1845) he received the court title Bizen no Suke, the signature Bizen no Suke Fujiwara Munetsugu recurring on the dated katana from that point. His production runs from the latter half of Bunsei into the early Meiji years, and the program it serves is the Bakumatsu fukko revival of Bizen-den: a deliberate return, from an Edo workshop, to the chōji tempering of the old Bizen masters. The shared idiom is consistent across the line. Construction tends to a wide mihaba, thick kasane, shallow sori and an extended chū-kissaki or ō-kissaki, giving the heavy-in-hand shinshintō bearing the readers call taihai. The ground is a tightly packed ko-itame, sometimes flowing toward nagare or masame, carrying extremely fine mijin-grade ji-nie and frequent chikei; faint utsuri rises on a number of blades.
The temper is the heart of the recognition: a nioi-dominant chōji-midare or gunome-chōji, with ko-chōji, togariba and angular heads mixed in, long ashi and yō entering, fine sunagashi and kinsuji, and a bright, clear nioiguchi. To read his hand, the setsumei flag particular chōji shapes (the kawazuko tadpole-head and the kobushi fist-shaped chōji clustered near Keiō-dated work), a midare-komi bōshi turning in ko-maru with hakikake, and the bold, thick-chiseled signatures with prominent chisel-pillows. Cutting-test inscriptions are common, several tied to the connoisseur Iga Norishige, who is recorded learning swordmaking from Munetsugu. His pupils carry the same vocabulary: Tairyūsai Sōkan (宗寛, also Munekane), son of Ōno Heizō and later a Koga/Furukawa domain smith, whose blades add a faint midare-utsuri and a smaller-pattern late temper; and the likely student Kongōsai Munehiro, who copied the same shrine original his master did. For kantei, the discriminating points are the orderly yet varied chōji arrayed shoulder-to-shoulder, the nie-laden Tenpō-era pieces whose habuchi has not yet settled, and a deliberate allusion to the second-generation Kunisuke when kobushi-like chōji appear. The named works root the line in documented copying: an utsushi of the National Treasure Koryū Kagemitsu, reconstructed to its original ubu state with kurikara and bonji carved by Sōkan; and a Tenpō 11 (1840) wakizashi copying the hōchō-shaped Masamune of Egara Tenmangū in Kamakura, carved by Tōryūsai Seiju and dedicated by Nomura Toshikatsu, a rare pairing of two Edo masters. Provenance inscriptions name patrons such as Miyake Takuma and the Furukawa domain on the Sōkan side. Across the NBTHK register, the work stands as a disciplined Edo restatement of the Bizen chōji tradition, prized for the brightness of its nioiguchi and for the documentary value of its dated, commissioned and trial-cut tangs. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Munetsugu宗次 | 1830-1870 | 52 |
| Sokan宗寛 | 1850-1868 | 5 |
Bakumatsu: the last war market
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteAs a general rule, returns/exchanges are not accepted on Japanese sword orders unless damaged upon delivery. Other items: returns/exchanges accepted within 7 days of delivery. Cancellation for personal reasons incurs a 30% restocking fee (70% refunded). Return shipping must be prepaid and insured by the buyer; shipping/handling fees are non-refundable. Contact katana@tozando.co.jp to initiate a return.
¥250,000