Sōshū was born in a boomtown: Kamakura, seat of the warrior government, dense with elite patrons. Tradition holds that master smiths were summoned east to serve it, and from their students came Shintōgo Kunimitsu and then Masamune.
NihontoWatchNihontoWatchSaid to be the son or student of Shintogo Kunimitsu, and said to be either the adoptive father or senior fellow student of Soshu Masamune, this is a sword representing the master smiths of Soshu. The jigane in the Awataguchi tradition is beautiful, and the activity and clarity of the ha is as if one were looking at a Masamune. With jihada in the Awataguchi style and a ha in the Masamune style, it is a nihonto of the highest peak.
NihontoWatchOffered by Hyozaemon
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As written by the shop
Machine translation from the shop's Japanese · may contain errors ·
Soshu-den · Sagami · around 1310-1333
Where Kunimitsu stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
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Soshu-den · Sagami
Phase: Sōshū相州· 1288–1385
37 pieces on the market now
Steel "bright and clear," with thick ji-nie and chikei entering frequently, is the constant the NBTHK returns to in nearly every blade of this phase, and it marks the moment the Soshu tradition reached its summit in Sagami. " The sampled blades cluster around the masters who carried this manner forward: Go Yoshihiro of Matsukura-go in Etchu, counted among the Masamune Juttetsu and represented here by numerous ō-suriage katana, and the Sagami smiths Hiromitsu and Akihiro, who stand "next after Sadamune" and extend the phase with dated works running from Enbun 2 (1357) to Shitoku 4 (1387). The window spans late Kamakura proportions through the broad Enbun-Joji forms of the fourteenth century. The phase reads as itame-hada mixed with mokume, often tending toward standing or flowing grain, carrying very fine ji-nie laid thickly with chikei threaded densely throughout; over this the hamon is founded on notare mixed with gunome, ko-gunome, and a chōji flavor, with deep nioi, thick nie, and kinsuji and sunagashi running well, the nioiguchi bright and clear. This is precisely the distance the school traveled from its Awataguchi roots: where that foundation held a tight, restrained suguha, the Go katana break into wide yakihaba, nie-kuzure, and yubashiri (one setsumei records nie that "gathers, thickens, and congeals"), with a bōshi tempered so deeply it becomes ichimai and sweeps in hakikake. Go himself sits one step calmer than Masamune and Norishige, his chikei and kinsuji more reserved but his ji and ha a step brighter, the hada often masame-inclined; one wide-suguha example with ko-midare shows how close the quiet end of his range stays to the Kunimitsu manner.
" Here the classic phase divides from the later Sue-Soshu continuation, whose Muromachi smiths inherited the vocabulary without the depth of nie and clarity of steel recorded in these blades. A collector separates this phase because it holds the recognized masters at full strength. Go achieved the highest designation through the unmistakable brightness of his ji-ha alone, despite no surviving signed works, and the sample carries the weight of that reputation: the meibutsu Nakagawa-Go owned by a retainer of Oda Nobunaga and later the Tokugawa house, the "Kabuto-giri" Go inlaid by Hon'ami appraisal, the Okubo-Go transmitted in the Odawara Okubo family, and blades held by the Uwajima Date and Chikuzen Kuroda houses, with names recorded in the Kyoho Meibutsu-cho. The kantei points are concrete and repeated: Go's active nie-ashi, masame tendency, and ichimai bōshi; Akihiro's dated five-character "Soshu Akihiro" signatures, whose shift from full to abbreviated dating after Eiwa lets a viewer place a blade in time; and the near-indistinguishability of Hiromitsu and Akihiro, parsed only by scale and the prominence of dango-chōji. These are the works that define the Soshu apex, against which both the Awataguchi foundation and the Sue-Soshu aftermath are measured. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Masamune正宗 | 1288-1293 | 87 |
| Sadamune貞宗 | 1329-1331 | 88 |
| Go Yoshihiro義弘 | 1299-1302 | 53 |
| Kunimitsu國光 | 1293-1322 | 69 |
| Akihiro秋廣 | 1346-1370 | 28 |
Sōshū in the Kamakura period
Sōshū was born in a boomtown: Kamakura, seat of the warrior government, dense with elite patrons. Tradition holds that master smiths were summoned east to serve it, and from their students came Shintōgo Kunimitsu and then Masamune.
A blade of top-grade workmanship and condition, formally judged to rank with a nationally recognized Important Art Object (Jūyō Bijutsuhin). Awarded only at the NBTHK’s competitive annual examination.
Of Japan’s roughly 2.5 million registered swords, only 12,348 (about 1 in 202) have ever attained Jūyō.
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 siteWithin one week of the item's arrival (cooling-off is available within Japan only). If the returned item's condition differs from the time of sale, or the item has been used, no refund can be given. For defects that differ from the purchase conditions, we accept the return and refund the payment. (A defect means something that impairs the item's proper use, such as a hagire (crack in the edge), a re-tempered blade (saiba) or a forgery; items described as having a hagire, a saiba or as a forgery are excluded.) For overseas customers, please consult us separately.