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Description

This is an O-suriage mumei katana attributed to Ryokai, a master smith of the Rai school from Yamashiro province during the late Kamakura period (Einin era). It features elegant horimono carvings including Bo-hi, Hatahoko, 2 suji-hi, and Suken, enhancing its aesthetic appeal. The blade exhibits a finely forged jitetsu with dense jikei and a bright hamon in suguha style, characteristic of the Rai school.

NBTHK Setsumei

Jūyō-Tōken, 41st Session — Designated November 10, 1995 Katana, mumei: Ryōkai (了戒) Measurements Nagasa 69.2 cm, sori 2.2 cm, motohaba 2.6 cm, sakihaba 1.8 cm, kissaki-nagasa 2.8 cm, nakago-nagasa 17.4 cm, nakago-sori extremely slight Description Keijō: shinogi-zukuri, iori-mune; slender; high sori with a wazori-like impression; chū-kissaki. Kitae: ko-itame mixed with ko-mokume; overall well-forged and finely textured; fine ji-nie; a whitish (shirake-like) utsuri stands out. Hamon: chū-suguha mixed with ko-gunome-flavor; ko-ashi enter; with ko-nie; around the midsection the nioiguchi shows a tendency toward urumi (moist/soft). Bōshi: On the omote an ō-maru-like turn; on the ura ko-maru. Horimono: Omote: futasuji-hi, and below it a hata-hoko carved from the koshi-moto down into the nakago. Ura: bō-hi, and below it a suken carved from the koshi down into the nakago. Nakago: Greatly shortened (ō-suriage), tip cut kiri; file marks kiri; four mekugi-ana; unsigned. Artisan Ryōkai Era Late Kamakura period Explanation Ryōkai of Yamashiro Province was a swordsmith belonging to the Rai school. According to the commonly held view, he is transmitted as a student of Rai Kunitoshi. However, among the dated works that survive by this smith are examples from the same general timeframe as Rai Kunitoshi—Shōō, Kagen, and Enkyō—and for that reason it seems more appropriate to regard him, rather, as a fellow disciple alongside Rai Kunitoshi. At first glance, his workmanship appears to follow the manner of Rai Kunitoshi; however, characteristic points by which one may identify this craftsman are as follows: a ko-itame hada that includes, here and there, a masame-tendency, together with a whitish (shirake-like) utsuri that emerges; and a gentle, true suguha in which the nioiguchi shows, in places, a tendency toward urumi. This katana is greatly shortened and unsigned, but it displays the aforementioned characteristics very well. It is therefore a blade that should be appraised as Ryōkai, and moreover its state of preservation in both ji and ha is excellent.

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Swords›Yamashiro-den›Rai›Ryokai›Katana: Unsigned (O-suriage) Ryokai
katanaJūyō
Ryokai School

Katana: Unsigned (O-suriage) Ryokai

suriage-mumei · Rai · Kamakura · nagasa 69.08cm · sori 2.27cm

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KatanaJūyō
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Measurements & details
Smith
Ryokai School
Type
Katana
School
Ryokai
Period
Kamakura
Province
Yamashiro
Signature
suriage-mumei(100% of this smith's designated works are signed)
Measurements
Nagasa 69.08cmSori 2.27cmMotohaba 2.64cmSakihaba 1.76cmKasane 0.61cm
Description

This is an O-suriage mumei katana attributed to Ryokai, a master smith of the Rai school from Yamashiro province during the late Kamakura period (Einin era). It features elegant horimono carvings including Bo-hi, Hatahoko, 2 suji-hi, and Suken, enhancing its aesthetic appeal. The blade exhibits a finely forged jitetsu with dense jikei and a bright hamon in suguha style, characteristic of the Rai school.

NBTHK Zufu Commentary

Juyo #41

AI translation — may contain errors

-, 41st Session — Designated November 10, 1995

, : Ryōkai (了戒)

Measurements 69.2 cm, 2.2 cm, 2.6 cm, 1.8 cm, 2.8 cm, 17.4 cm, extremely slight

Description Keijō: , ; slender; high with a -like impression; . : mixed with ; overall well-forged and finely textured; fine ; a whitish (-like) stands out. : mixed with -flavor; enter; with ; around the midsection the shows a tendency toward (moist/soft). : On the an -like turn; on the . : : , and below it a hata- carved from the down into the . : , and below it a carved from the down into the . : Greatly shortened (), tip cut ; file marks ; four ; unsigned.

Artisan Ryōkai

Era Late period

Explanation Ryōkai of Yamashiro Province was a swordsmith belonging to the school. According to the commonly held view, he is transmitted as a student of Kunitoshi. However, among the dated works that survive by this smith are examples from the general timeframe as Kunitoshi—Shōō, Kagen, and Enkyō—and for that reason it seems more appropriate to regard him, rather, as a fellow disciple alongside Kunitoshi.

At first glance, his workmanship appears to follow the manner of Kunitoshi; however, characteristic points by which one may identify this craftsman are as follows: a that includes, here and there, a -tendency, together with a whitish (-like) that emerges; and a gentle, true in which the shows, in places, a tendency toward .

This is greatly shortened and unsigned, but it displays the aforementioned characteristics very well. It is therefore a blade that should be appraised as Ryōkai, and moreover its state of preservation in both and is excellent.

About the school

Ryokai

了戒

Yamashiro-den · Yamashiro

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›

The Ryokai school (了戒) took shape in the late-Kamakura capital of Kyoto, in Yamashiro Province, around the smith Ryokai, who worked through the era names Shoo, Einin, Kagen, Enkyo and Ocho at the turn of the fourteenth century. The old account makes him a son or a pupil of Rai Kunitoshi, and one version has him adopted into Kunitoshi's house; because his dated blades place him almost level with Kunitoshi, however, the NBTHK reads him more naturally as a contemporary (an aitedeshi, a fellow disciple) who formed his own line within the wider Rai circle. Whichever account one follows, his is the Rai Yamashiro hand softened by a degree, and from him the Ryokai name descended for several generations, his son Ryo Hisanobu (久信) following as the second master, with a Kyushu branch, the Chikushi Ryokai of Bungo and Buzen, forming by the Nanbokucho and Muromachi eras. What the members hold in common is a quiet manner read against, and just apart from, the Rai parent. Over a packed itame or ko-itame that flows toward masame and stands a little open, fine ji-nie clings and faint chikei enter, while a whitish shirake-utsuri rises in the ji; this paler, drier utsuri, against the clear midare- or jifu-utsuri of Rai proper, is the first thing that separates a Ryokai blade from its source. The temper is a calm chu- or hoso-suguha, mixing here a little ko-choji, ko-gunome or ko-midare, with ko-ashi and yo entering and sometimes a Kyoto reverse ashi; kinsuji and sunagashi run within a tight nioiguchi that grows austere and, in places, clouds into urumi, the moist soft quality the published sources name again and again as a Ryokai point. The boshi closes sugu into a small ko-maru, often brushed with a touch of hakikake. The school stands so close to Rai Kunitoshi that the two are confused at sight; the attribution settles not on any single feature but on the softer ji and ha, the standing masame, the whitish utsuri and the clouding line, the judges noting that compared with Kunitoshi the activity within the temper runs lonelier and the nioiguchi one degree tighter.

Against the sister Enju school the distinction is the boshi: where Enju turns a large deep o-maru and leaves the line bright, Ryokai closes a small ko-maru and clouds into urumi. The masame and the whitish cast carry the line a step toward Yamato and Yamato-den, and downstream toward Nobukuni and the Soshu-shaded work that followed. To kantei a Ryokai blade is to recognize the Rai air of wa-zori and refined steel, then to read the tells that part it from the parent: the jihada leaning to masame and standing where Rai stays smooth, the shirake in place of bright utsuri, and the tight, clouding nioiguchi. Among the members the founder, Ryokai, holds first standing, rated Jo-saku by Fujishiro and represented by slender ubu tachi and tanto signed with a boldly cut two-character mei, several carved with bonji and suken, alongside the bulk of his attributed record in osuriage mumei katana given to him on the hand; one such tanto the published sources call altogether elegant and a representative work, the signature itself of the archetypal type. Hisanobu, the second master, rated Jo-jo saku, carried the father's suguha on with little change, his rare signed tachi and kodachi prized as documentary evidence, one dated piece establishing through his given name that an earlier nationally designated tachi once read as the father's sole work is in fact a joint work of father and son; the remaining members and the later Kyushu generations continue the manner generically. Provenance follows the founder above all: blades passing through the Isahaya, Date and Maeda families, one preserving a tradition that it was a sword worn by Miyamoto Musashi, and the finest pieces held and studied in long-standing public and private collections including the Tokyo National Museum, the Sano Art Museum and Monobe Jinja. A signed ubu Ryokai blade in particular is among the scarcer things a collector of Kyoto Kamakura work will meet, coming to hand only with patience. Learn more →

4 recorded smiths110 designated works
Leading smiths
SmithEraDesignated
Ryokai了戒1288-130597
Hisanobu久信1304-13085
Nobumasa信正1345-13500
Noshin能真Early Muromachi1
Nobuyoshi宣能1444-14490
Explore the Ryokai school →

Historical context

Yamashiro in the Kamakura period

›

Power sat in Kamakura, but taste was still made in Kyōto. The Awataguchi school’s pear-skin steel became a byword for perfection, and the Rai line supplied dignified tachi to the court, senior warriors, and the great temples alike.

Yamashiro in the Kamakura period →

NBTHK Certificate
Jūyō Tōken重要刀剣
Important Sword
›

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 12,307 (about 1 in 203) have ever attained Jūyō.

About the NBTHK›

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 site→
Seller
C
Choshuya
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Return policy

If, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.

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Description

This is an O-suriage mumei katana attributed to Ryokai, a master smith of the Rai school from Yamashiro province during the late Kamakura period (Einin era). It features elegant horimono carvings including Bo-hi, Hatahoko, 2 suji-hi, and Suken, enhancing its aesthetic appeal. The blade exhibits a finely forged jitetsu with dense jikei and a bright hamon in suguha style, characteristic of the Rai school.

NBTHK Setsumei

Jūyō-Tōken, 41st Session — Designated November 10, 1995 Katana, mumei: Ryōkai (了戒) Measurements Nagasa 69.2 cm, sori 2.2 cm, motohaba 2.6 cm, sakihaba 1.8 cm, kissaki-nagasa 2.8 cm, nakago-nagasa 17.4 cm, nakago-sori extremely slight Description Keijō: shinogi-zukuri, iori-mune; slender; high sori with a wazori-like impression; chū-kissaki. Kitae: ko-itame mixed with ko-mokume; overall well-forged and finely textured; fine ji-nie; a whitish (shirake-like) utsuri stands out. Hamon: chū-suguha mixed with ko-gunome-flavor; ko-ashi enter; with ko-nie; around the midsection the nioiguchi shows a tendency toward urumi (moist/soft). Bōshi: On the omote an ō-maru-like turn; on the ura ko-maru. Horimono: Omote: futasuji-hi, and below it a hata-hoko carved from the koshi-moto down into the nakago. Ura: bō-hi, and below it a suken carved from the koshi down into the nakago. Nakago: Greatly shortened (ō-suriage), tip cut kiri; file marks kiri; four mekugi-ana; unsigned. Artisan Ryōkai Era Late Kamakura period Explanation Ryōkai of Yamashiro Province was a swordsmith belonging to the Rai school. According to the commonly held view, he is transmitted as a student of Rai Kunitoshi. However, among the dated works that survive by this smith are examples from the same general timeframe as Rai Kunitoshi—Shōō, Kagen, and Enkyō—and for that reason it seems more appropriate to regard him, rather, as a fellow disciple alongside Rai Kunitoshi. At first glance, his workmanship appears to follow the manner of Rai Kunitoshi; however, characteristic points by which one may identify this craftsman are as follows: a ko-itame hada that includes, here and there, a masame-tendency, together with a whitish (shirake-like) utsuri that emerges; and a gentle, true suguha in which the nioiguchi shows, in places, a tendency toward urumi. This katana is greatly shortened and unsigned, but it displays the aforementioned characteristics very well. It is therefore a blade that should be appraised as Ryōkai, and moreover its state of preservation in both ji and ha is excellent.

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MarketEncyclopediaKantei
Swords›Yamashiro-den›Rai›Ryokai›Katana: Unsigned (O-suriage) Ryokai
katanaJūyō
Ryokai School

Katana: Unsigned (O-suriage) Ryokai

suriage-mumei · Rai · Kamakura · nagasa 69.08cm · sori 2.27cm

Price on request
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KatanaJūyō
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KatanaJūyō
Could you name the smith from the blade alone? Today’s kantei →
Measurements & details
Smith
Ryokai School
Type
Katana
School
Ryokai
Period
Kamakura
Province
Yamashiro
Signature
suriage-mumei(100% of this smith's designated works are signed)
Measurements
Nagasa 69.08cmSori 2.27cmMotohaba 2.64cmSakihaba 1.76cmKasane 0.61cm
Description

This is an O-suriage mumei katana attributed to Ryokai, a master smith of the Rai school from Yamashiro province during the late Kamakura period (Einin era). It features elegant horimono carvings including Bo-hi, Hatahoko, 2 suji-hi, and Suken, enhancing its aesthetic appeal. The blade exhibits a finely forged jitetsu with dense jikei and a bright hamon in suguha style, characteristic of the Rai school.

NBTHK Zufu Commentary

Juyo #41

AI translation — may contain errors

-, 41st Session — Designated November 10, 1995

, : Ryōkai (了戒)

Measurements 69.2 cm, 2.2 cm, 2.6 cm, 1.8 cm, 2.8 cm, 17.4 cm, extremely slight

Description Keijō: , ; slender; high with a -like impression; . : mixed with ; overall well-forged and finely textured; fine ; a whitish (-like) stands out. : mixed with -flavor; enter; with ; around the midsection the shows a tendency toward (moist/soft). : On the an -like turn; on the . : : , and below it a hata- carved from the down into the . : , and below it a carved from the down into the . : Greatly shortened (), tip cut ; file marks ; four ; unsigned.

Artisan Ryōkai

Era Late period

Explanation Ryōkai of Yamashiro Province was a swordsmith belonging to the school. According to the commonly held view, he is transmitted as a student of Kunitoshi. However, among the dated works that survive by this smith are examples from the general timeframe as Kunitoshi—Shōō, Kagen, and Enkyō—and for that reason it seems more appropriate to regard him, rather, as a fellow disciple alongside Kunitoshi.

At first glance, his workmanship appears to follow the manner of Kunitoshi; however, characteristic points by which one may identify this craftsman are as follows: a that includes, here and there, a -tendency, together with a whitish (-like) that emerges; and a gentle, true in which the shows, in places, a tendency toward .

This is greatly shortened and unsigned, but it displays the aforementioned characteristics very well. It is therefore a blade that should be appraised as Ryōkai, and moreover its state of preservation in both and is excellent.

About the school

Ryokai

了戒

Yamashiro-den · Yamashiro

14 pieces on the market now

›

The Ryokai school (了戒) took shape in the late-Kamakura capital of Kyoto, in Yamashiro Province, around the smith Ryokai, who worked through the era names Shoo, Einin, Kagen, Enkyo and Ocho at the turn of the fourteenth century. The old account makes him a son or a pupil of Rai Kunitoshi, and one version has him adopted into Kunitoshi's house; because his dated blades place him almost level with Kunitoshi, however, the NBTHK reads him more naturally as a contemporary (an aitedeshi, a fellow disciple) who formed his own line within the wider Rai circle. Whichever account one follows, his is the Rai Yamashiro hand softened by a degree, and from him the Ryokai name descended for several generations, his son Ryo Hisanobu (久信) following as the second master, with a Kyushu branch, the Chikushi Ryokai of Bungo and Buzen, forming by the Nanbokucho and Muromachi eras. What the members hold in common is a quiet manner read against, and just apart from, the Rai parent. Over a packed itame or ko-itame that flows toward masame and stands a little open, fine ji-nie clings and faint chikei enter, while a whitish shirake-utsuri rises in the ji; this paler, drier utsuri, against the clear midare- or jifu-utsuri of Rai proper, is the first thing that separates a Ryokai blade from its source. The temper is a calm chu- or hoso-suguha, mixing here a little ko-choji, ko-gunome or ko-midare, with ko-ashi and yo entering and sometimes a Kyoto reverse ashi; kinsuji and sunagashi run within a tight nioiguchi that grows austere and, in places, clouds into urumi, the moist soft quality the published sources name again and again as a Ryokai point. The boshi closes sugu into a small ko-maru, often brushed with a touch of hakikake. The school stands so close to Rai Kunitoshi that the two are confused at sight; the attribution settles not on any single feature but on the softer ji and ha, the standing masame, the whitish utsuri and the clouding line, the judges noting that compared with Kunitoshi the activity within the temper runs lonelier and the nioiguchi one degree tighter.

Against the sister Enju school the distinction is the boshi: where Enju turns a large deep o-maru and leaves the line bright, Ryokai closes a small ko-maru and clouds into urumi. The masame and the whitish cast carry the line a step toward Yamato and Yamato-den, and downstream toward Nobukuni and the Soshu-shaded work that followed. To kantei a Ryokai blade is to recognize the Rai air of wa-zori and refined steel, then to read the tells that part it from the parent: the jihada leaning to masame and standing where Rai stays smooth, the shirake in place of bright utsuri, and the tight, clouding nioiguchi. Among the members the founder, Ryokai, holds first standing, rated Jo-saku by Fujishiro and represented by slender ubu tachi and tanto signed with a boldly cut two-character mei, several carved with bonji and suken, alongside the bulk of his attributed record in osuriage mumei katana given to him on the hand; one such tanto the published sources call altogether elegant and a representative work, the signature itself of the archetypal type. Hisanobu, the second master, rated Jo-jo saku, carried the father's suguha on with little change, his rare signed tachi and kodachi prized as documentary evidence, one dated piece establishing through his given name that an earlier nationally designated tachi once read as the father's sole work is in fact a joint work of father and son; the remaining members and the later Kyushu generations continue the manner generically. Provenance follows the founder above all: blades passing through the Isahaya, Date and Maeda families, one preserving a tradition that it was a sword worn by Miyamoto Musashi, and the finest pieces held and studied in long-standing public and private collections including the Tokyo National Museum, the Sano Art Museum and Monobe Jinja. A signed ubu Ryokai blade in particular is among the scarcer things a collector of Kyoto Kamakura work will meet, coming to hand only with patience. Learn more →

4 recorded smiths110 designated works
Leading smiths
SmithEraDesignated
Ryokai了戒1288-130597
Hisanobu久信1304-13085
Nobumasa信正1345-13500
Noshin能真Early Muromachi1
Nobuyoshi宣能1444-14490
Explore the Ryokai school →

Historical context

Yamashiro in the Kamakura period

›

Power sat in Kamakura, but taste was still made in Kyōto. The Awataguchi school’s pear-skin steel became a byword for perfection, and the Rai line supplied dignified tachi to the court, senior warriors, and the great temples alike.

Yamashiro in the Kamakura period →

NBTHK Certificate
Jūyō Tōken重要刀剣
Important Sword
›

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 12,307 (about 1 in 203) have ever attained Jūyō.

About the NBTHK›

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 site→
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