Edo was the sword’s age of connoisseurship: the Hon’ami appraisers, the shogunal register of famous blades of 1719, and a thriving literature turned the sword into an object of study even as it ceased to be drawn in war.
NihontoWatchNihontoWatchSome swords simply feel invincible. Forged in the rare unokubi-zukuri shape – derived from the great naginata pole arms of the warrior monks – this muscular katana by Hiroshige glides effortlessly in the hand. The secret lies in the skillfully bevelled spine, which sheds excess weight without sacrificing any structural integrity. It is a form that speaks directly to purpose: fast, powerful, and entirely reliable. The Shitahara school of Musashi province (present-day Hachioji, Tokyo) built a formidable reputation for producing swords the samurai warrior class could trust with their lives. They are the only school known to have worked in the Bushu region prior to the 1600s, and this blade – datable from the Kan’ei to Kanbun eras (circa 1624 to 1673) – represents the school at the height of its output. The original, unaltered ubu-nakago carries a distinctive tanago-bara shape, its upper section bulging before tapering into a narrow lower body – said to resemble the belly of a bitterling fish. The hamon is a lively composition of wavy notare mixed with ko-gunome, punctuated by bright scattered spots of tobiyaki and the crab-claw formations of kanitsume on the reverse. A golden flash of kinsuji rips through the temper line, while the spine has been tempered in the Sôshû tradition – the distinctive muneyaki confirming this smith’s stylistic debt to that great lineage. Completing the package is a stunning custom koshirae commissioned in 2019, built around the theme of inoshishi (the wild boar) to mark the Year of the Wild Boar.
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Shinto · Musashi
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The Shitahara group (下原) worked at Hachiōji in Bushū, the old province of Musashi, from the end of the Muromachi period and carried its forge on into the Edo period. The setsumei place the lineage among the swordmakers of Musashi in the kotō age and name Terushige, Yasushige, Hiroshige, and Chikashige as its leading hands, with the meikan recording Terushige across three generations: a shodai in Kyōroku, a nidai in Eiroku, and a sandai in Tenshō. " That same blade was made to order, in this case from Hagiwara Kaminao of Kōshū, marking the group as a working provincial forge serving its region. In the forging the setsumei return repeatedly to an itame-hada freely mixed with mokume that stands up rather than lying flat, the grain described as hada-datsu, often running to nagare near the edge and taking on an ayasugi-like, whorled or vortex-like cast in the jigane. The temper is a moderately undulating notare into which gunome enter, frequently in regular paired sequences, with pointed togariba, a chōji-like feeling at times, and ko-nie clinging along a nioiguchi that can settle into a subdued shizumi tone; sunagashi and ashi appear within the ha, and the bōshi tends to run midare-komi and turn back in maru. One katana sets gunome, ō-midare and angular elements into a notare, its bōshi sweeping off in hakikake.
The setsumei read this hand as a synthesis drawing on late Sōshū and the Muramasa line together with late Mino tendencies, which together account for the standing grain and the paired gunome. For kantei the markers are consistent: the risen mokume with its ayasugi turn, the regularly paired gunome, and a build suited to the uchigatana of the closing Muromachi years, often with pronounced sakizori and an extended chū-kissaki. Carving recurs, including bō-hi, bonji, gomabashi, and a deeply cut kurikara-ryū whose coiling tail the NBTHK singles out as characteristic. Named and dated pieces anchor the group: the Yamamoto Genjirō Terushige naginata, uncommon as a double-edged ryōba form, and a Terushige katana appraised between Eiroku and Tenshō that the register calls the hakubi of the school. The setsumei note that Shitahara work survives in number into the shintō period while outstanding examples remain few, which sets these designated blades apart within the lineage. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Terushige照重 | 1558-1570 | 2 |
| Terushige照重 | 1596-1615 | 1 |
| Yasushige康重 | 1558-1570 | 1 |
| Morishige盛重 | 1661-1673 | 0 |
| Yasushige康重 | 1661-1704 | 0 |
The Edo period (1615 to 1868)
Edo was the sword’s age of connoisseurship: the Hon’ami appraisers, the shogunal register of famous blades of 1719, and a thriving literature turned the sword into an object of study even as it ceased to be drawn in war.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 siteAll swords come with a three-day inspection period beginning from the date of delivery. If not satisfied, the sword may be returned within this period for a full refund of the purchase price. Outside of this period, all sales are final. Swords purchased on a layaway payment plan are not eligible for the three-day inspection period.