The divided-courts war impoverished the court society that had sustained Kyōto’s most refined work. With the last Rai masters the classic line effectively closed, while Hasebe and Nobukuni carried the new Sōshū manner into the capital.
NihontoWatchNihontoWatch凡例 甲（甲種特別貴重刀剣）、丸（特別貴重刀剣）、貴（貴重刀剣） 長さ2尺2寸6分強 本刀は昔から山城来国光の刀として伝わってきた名刀ですが、現在の保存刀剣の鑑定では、同じ時代の南北朝応安頃（1368年）（646年前）山城来国行の系統の伝千代鶴の刀に鑑定されています。千代鶴派の元は山城来国安が越前に移住したと言われています。本刀は元は2尺6寸以上あった太刀を大すりあげ無銘にした刀で、切っ先がやや延び、南北朝期の延文貞治型のやや反りのある姿で、地金は小板目肌良く詰み、一部板目が現れ、刃紋は山城来派の、のたれ乱れ刃に蕨手丁子刃を交え、古来から来国光の刀と伝へられるところです。今回生で出たために格安にてご提供いたします。来国光と言い伝えられた名刀をお楽しみ下さいませ。
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Yamashiro-den · Echizen
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The Chiyozuru lineage took root in Echizen Province during the Nanbokuchō period, and the setsumei consistently trace its origin to Rai Kuniyasu (来国安). He is said to have been born in Yamashiro Province, with one tradition holding him a grandson of Rai Kunisue; he later moved to Echizen, where the meikan place him around the Jōji and Sadaji eras (ca. 1362 to 1368). A parallel tradition, recorded on the signed tachi attributed to Morihiro, names Chiyozuru Kuniyasu[[c:1]] as a disciple of Rai Kuniyasu and the founder of the line. From this root descend the smiths the blades document: Morihiro (守弘), placed in the Kuniyasu line across two generations, the first set in the Ōei era (1394 to 1428) and the second in the Kakitsu (1441 to 1444) and Bun'an (1444 to 1449) eras; and Mitsuyuki of Tsuruga[[c:2]], recorded as a student of Echizen Kuniyuki and known from a rare Kakei-dated tantō. The Yamashiro inheritance runs through the whole group, even as the workmanship moves away from the Kyoto homeland into a provincial Hokuriku register. Two stylistic strands run through the corpus, and recognizing the hand means reading where a given blade falls between them. The Rai-derived work, seen in the katana attributed to Rai Kuniyasu, shows itame mixed with mokume and nagare-hada, the grain tending to stand (hada-dachi) with thick ji-nie and frequent chikei; the steel carries a whitish or, in places, slightly blackish cast that the setsumei read as a provincial inflection of Yamashiro.
The hamon on these is a chū-suguha mixed with ko-gunome, the edge breaking into hotsure, kuichigai-ba, and nijūba, with ashi, yō, kinsuji, and sunagashi running through and a bright nioiguchi; the bōshi enters midare-komi or shallow notare-komi, turning in ko-maru with hakikake, at times vigorous enough to give a flame-like (kaen) impression. The Morihiro strand turns toward a gunome-based midareba with a chōji tendency, tobiyaki, and muneyaki, the forging moving toward masame near the edge; the setsumei mark this gunome-toned, nie-laden manner as differing in character from the Rai style and proper to the later line. For kantei, the setsumei set the diagnostic problem plainly: a Chiyozuru blade can at first glance resemble the orthodox Yamashiro Rai work, particularly around Rai Kunimitsu, yet careful reading of the standing grain, the whitish or blackish jigane, and the rustic activity in the bōshi beyond what the Kyoto homeland shows directs the attribution to Echizen. The boldest Nanbokuchō pieces, wide in mihaba with ō-kissaki and muneyaki, invite comparison with Hokuriku contemporaries such as Etchū Tametsugu (越中為継), but the character of ji and ha keeps them within the Chiyozuru fold. Signed examples anchor the line: Morihiro tachi and a Kakitsu 1 (1441) dated wakizashi carrying his Tōzaemon no Jō name, and the Mitsuyuki tantō whose Kakei date makes it documentary material of high value, dated works of the group being extremely scarce. The Morihiro tachi of Jūyō-Bijutsuhin standing is recorded in the Kōzan Oshigata, Kokon Kajibikō, and Kantō Zuiroku. Across the corpus the line holds a distinct place among Nanbokuchō and early Muromachi Hokuriku smiths, carrying a Yamashiro pedigree into a workmanship the appraisers read as its own. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kuniyasu國安 | 1345-1350 | 4 |
| Ieyoshi家善 | 1487-1489 | 0 |
| Kagemori景守 | 1394-1428 | 0 |
| Munemitsu宗光 | 1441-1444 | 0 |
| Iemasa家正 | 1492-1501 | 0 |
Yamashiro in the Nanbokuchō period
The divided-courts war impoverished the court society that had sustained Kyōto’s most refined work. With the last Rai masters the classic line effectively closed, while Hasebe and Nobukuni carried the new Sōshū manner into the capital.
The NTHK’s principal certificate, issued for a blade of considerable quality. It confirms a genuine signature, or, for an unsigned (mumei) work, records the judges’ attribution to a smith or school. The paper carries a detailed worksheet with a numerical point score.
The NTHK (Nihon Tōken Hozon Kai, the Society for the Preservation of the Japanese Sword) is the oldest of Japan’s sword-appraisal bodies, founded in 1910, decades before the NBTHK. After the death of its long-serving head it divided into two successor societies, the NTHK and the NTHK-NPO, both of which continue to hold shinsa. NTHK certificates are known for a detailed worksheet that records a numerical point score alongside the judges’ written opinion, and the society is especially respected for its attribution of unsigned (mumei) work.
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