This katana is signed by the 2nd Generation Kawachi no Kami Kunisuke, who succeeded his father, the 1st Generation Kunisuke, a student of Horikawa Kunihiro. Active in the early Edo period around the Kanbun era, his blades are known for their clear jigane and bright choji-ba hamon, indicating excellent cutting ability. The sword is from Settsu Province.
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Osaka Shinto (nidai Kawachi-no-kami Kunisuke, 'Naka-Kawachi') · Settsu · around 1658-1663
Fujishiro Jo saku · Tōken Taikan top 31%
9 pieces on the market now
The nidai Kawachi no Kami Kunisuke, commonly called Naka-Kawachi (中河内), is the leading clove-temper master of the early Osaka Shinto and the figure who gave the school its single most recognisable temper. He was the son of the shodai Kawachi no Kami Kunisuke, who is counted among the youngest disciples of Horikawa Kunihiro and who relocated to Osaka together with Kunisada after Kunihiro's death in Keicho 19 (1614). The Kunisuke house, however, traced its origin not to the Horikawa line but to the Ishido group of Seishu, and that descent shaped the second generation decisively. He turned away from his father's Horikawa manner and tempered a pure Ishido-style choji; the published sources state the point flatly, that he forged the Ishido clove outright and that the Horikawa style is not to be seen in his work. The published sources date his career from the death register of Ryūkai-ji in Osaka, which records his father's death in the fifth month of Shōhō 4: his own work begins with a katana dated the eighth month of that year, and dated pieces of Manji 4 and Kanbun 3 follow.
His characteristic hand is a brilliant choji-midare into which he mixes a clove of his own devising: a clenched-fist-headed clove the published sources describe as the distinctive one he originated and which the world came to call kobushigata-choji (拳形丁子). It is the central point of appreciation in his work and the feature by which he is known above all others. The temper is laid down nioi-dominant with ko-nie adhering, the ashi are long and enter well, with yo intermingled, and the nioiguchi is bright and clear. A constant of his construction is the opening: however irregular the midare becomes above it, the blade begins from a long, straight suguha yakidashi at the base, an Osaka Shinto convention he keeps without exception. The boshi answers it in kind, running sugu and turning back in ko-maru, the tip frequently becoming hakikake.
The jigane is the second half of his signature and the half the judges most admired. It is a ko-itame forged tightly and finely, with ji-nie well adhering and at times fine chikei entering, producing the refined and bright steel proper to Osaka, what the published sources call "the refined and bright steel characteristic of Osaka Shinto"[[c:1]]. Of his typical work the published sources say simply that the jigane is well-ordered and beautiful, a point of appreciation in itself; the recurring judgement is that "the well-ordered beauty of the jigane is a point of appreciation"[[c:2]]. This is the clean, packed Osaka ji, and it stands as the deliberate opposite of the loose, rustic zanguri forging his father had carried over from the Horikawa school, the contrast the commentary draws when it sets the son apart from the father.
Within this one well-defined manner the published record marks his variations. The typical blade is read as a representative example, his true strengths shown to their fullest in a wide yakihaba flamboyantly midare on a base of kobushigata-choji. A smaller number of works depart from it: in these the fist-shaped clove recedes and the yakiba carries stronger nie, with kinsuji and conspicuous sunagashi standing out, the sunagashi at times running through the long ashi as if to cut across the choji-ashi. In one such katana the published sources find in this manner "something that calls to mind Isshoshi Tadatsuna of the same province"[[c:3]], and judge it an uncommon but well-controlled piece, the hamon tempered without breakdown yet vividly flamboyant. On another the nie is stronger than usual and the hamon shows more change than is his habit, features the commentary calls unusual for Naka-Kawachi. A further idiom recurs across the line: above the koshi on both faces a temper occasionally rises in a shape that evokes Mount Fuji, something the sources note is seen from time to time in his work and in that of his successors. His earliest work stands apart: blades signed Kawachi no Kami Fujiwara Kunisuke are taken to be his early pieces, made just after his father's death, and the sources note that "almost all of them look like the first generation's work"[[c:4]]. One katana tempers kobushigata-choji on one face and suguha on the other, the two-faced konotegashiwa manner the sources otherwise know from Echizen and Hizen.
What sets his blades apart is read entirely from their own traits rather than by appeal to what other schools lack. His is the bright, packed Osaka ko-itame, the long straight yakidashi, and above it the flamboyant clove crowned by the fist-shaped heads he alone made his own; the most recent designation commentary names "the kobushigata-choji originated by this smith"[[c:5]] outright. The Tadatsuna resemblance is a recurring point of comparison, not a borrowing, drawn only on the rarer nie-laden works and always returned to his own well-ordered manner. Placed in the school, he is the celebrated peak of the Kunisuke name, which continued through several generations, and a central figure of the early Osaka Shinto choji tradition, the smith through whom the Ishido clove took its definitive Osaka form. The lowering of the temper below the yokote and the forging of the boshi in suguha, the published sources add, is a habit frequently encountered in Osaka work, placing his hand squarely within that regional grammar.
Twenty-five of his blades stand in the Jūyō rank. Most are katana in the Kanbun-Shinto shape of shallow curvature and a compact chu-kissaki, though one wakizashi is unusually wide with an extended point and is called by the published sources the summit of his shinogi-zukuri wakizashi, and one deeply curved katana signed in tachi-mei is thought to have been made as a tachi. A single collaborative katana with Kunimitsu is, in the sources' words, the only such joint work they have seen. Fujishiro rates him Jō saku. His blades carry no designation above Jūyō and no recorded provenance; these are the well-made katana of a productive Osaka master rather than heirloom meibutsu. That places him within reach in a way the greatest names are not: his designated blades appear from time to time, and a signed katana opening from the long straight yakidashi into the fist-shaped clove over the bright Osaka jigane is one of the most satisfying pieces the early Osaka Shinto can offer.
Where Kunisuke 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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Years he was demonstrably active, proven by signed-and-dated blades
Shinto · Settsu
78 pieces on the market now
Osaka in the early-to-mid Edo period was a merchant capital, a city of commerce and capital rather than a castle town tied to a single daimyo house, and the swordsmiths who gathered there worked for a wealthy townsman clientele as much as for warriors. The grouping known as Osaka Shinto (大坂新刀) took shape in Settsu from two feeder currents. One was the Horikawa line of Kyoto: Izumi no Kami Kunisada, the elder Kunisada whom later sources call the Oya-Kunisada, came down to Osaka after the death of his master Horikawa Kunihiro in Keicho 19 (1614), and with him came Kawachi no Kami Kunisuke, a late disciple of the same Kunihiro. The other was the Ishido tradition of Settsu and Ise, which had revived the koto Bizen choji in new-sword steel; the Kunisuke house traced its descent to that group, and its second generation, known as Naka-Kawachi, turned the line decisively toward the Ishido clove. From these beginnings the school grew through the Kanbun, Enpo, and Genroku years into the most coherent regional manner of the shinto age. What binds these smiths is a shared steel before any shared temper. The forging is the bright, packed Osaka ko-itame, sometimes called the Osaka-gitae, a jihada so tightly worked that the grain scarcely shows, the ji-nie adhering minutely and fine chikei threading the surface, the jigane clear and lustrous. A second constant is the start of the temper: nearly every blade opens with a straight suguha yakidashi at the base before the hamon declares its individual pattern, and a deep, bright nioiguchi runs the length above it. Within that common grammar the great hands diverge.
Tsuda Echizen no Kami Sukehiro founded the billowing toranba, the surging-wave toran-midare that became the school's most imitated signature. Inoue Shinkai, called the Osaka Masamune, tempered no wave at all but a deeply nie-laden suguha shading into shallow notare, with kinsuji and sunagashi entering vigorously, and the published sources pair the two by contrast as the school's two great champions, Sukehiro outstanding for nioi and Shinkai for fine ko-nie. Ikkanshi Tadatsuna carried the Sukehiro wave into his own sudareba, the surging temper that reads like a hanging bamboo blind, and matched it with the relief carving treasured as Ikkanshi-bori. The Echigo no Kami Kanesada line followed Sukehiro's toran so faithfully that the second generation is read as approaching the model, marking his own work with a leaning katayama-midare and three linked gunome below the yokote; Naka-Kawachi and his brothers Higo no Kami Kuniyasu and Ise no Kami Kuniteru held the rival clove wing, the flamboyant choji crowned by the fist-shaped kobushigata-choji over a beautifully ordered ji. A collector seeks Osaka Shinto for the union of bright steel and brilliant edge, an art-sword (bijutsu-token) appeal in which the jigane itself is half the pleasure. The grouping reads at kantei from its own grammar: look first for the Osaka-gitae, the lustrous near-muji ko-itame, then for the straight yakidashi opening the temper, then for the deep clear nioiguchi; the individual hand follows from the pattern above, Sukehiro's and Kanesada's and Tadatsuna's toran, Shinkai's nie-deep suguha, the Kunisuke wing's fist-shaped clove. The standing of the best members is high in the NBTHK register: Shinkai is rated Sai-jo saku, Tadatsuna and Kunisuke Jo-jo saku, and the line of the second Kanesada is held to rank immediately after Sukehiro and Shinkai, with later admirers such as the shinshinto smith Nagato no Kami Suketaka still copying the toranba a century on. Many of these blades are signed and dated, so their inscriptions double as documentary anchors for the whole tradition, and provenance, where it survives, runs through known houses and modern collectors, the Yamauchi of Tosa, the Itakura, the Imperial collection, and the Meiji sword-lover General Tani Tateki. A signed Shinkai of the Enpo prime or a dated Tadatsuna carrying his own carving is a landmark when it appears, while the productive clove masters of the Kunisuke wing offer a more attainable entry into the brightest steel and edge the early Osaka school produced. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Shinkai真改 | 1649-1682 | 81 |
| Tadatsuna忠綱 | 1673-1717 | 53 |
| Kanesada包貞 | 1673-1682 | 82 |
| Kunisuke國助 | 1658-1663 | 25 |
| Kuniyasu國康 | 1661-1673 | 7 |
Ōsaka: swords for the merchant capital
Ōsaka was the merchant capital, and its swords followed the money: luxury wakizashi for townsmen permitted no more than one, and the brilliant showpieces of Sukehiro’s tōranba and of Shinkai, called the Ōsaka Masamune. Swords made, frankly, to be looked at.
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
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