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Tanto, Shirasaya
No signature, attributed to Chikushi Ryokai
[ Signature ] No signature
[ Size ] Blade length 27,8cm(9 sun 1 bu 7 rin), sori 0cm(n/a), moto-haba 2,53cm, mune-moto-kasane 0,65cm, mekugi-ana(holes) 2, blade weight 186,5g , shirasaya length 42cm
[ Period ] Muromachî
[ Province ] Buzen

[ Feature ]
Form : Hira-zukuri. Mitsu-mune. Mihaba is relatively narrow. Kasane is ordinal. Sakiha becomes narrow not so much. Tanto form with a little uchi-sori.
Nakago : Ubu. Yasurimes are katte-sagari. Saki is kurijiri. Two holes.
Jigane : Itame-hada. Ko-mokume mixed. Jinie attached. Nie-utsuri appears.
Hamon : Hoso-suguha. Nioi-kuchi is in shimari-gokoro. Part by part, nie attached and got loose. Kinsens and sunagashis appeared.
Boushi : Komaru. It turns in shallow.

Swordsmith Ryokai, who worked actively in late Kamakura period, was pupil or co-student of Rai Kunitoshi. Ryokai Hisanobu who was a child of Ryokai and his descendants moved to Usa in Buzen province around the middle of Nan-boku-cho through the beginning of Muromachi period.
They were efficient swordsmith in Ryokai school so that they could flourish in Chiku-ho area. They are called Chikushi Ryokai in general.
There were many swordsmith, such as Yoshisada, Yoshizane, Kazuyoshi, Shigeyuki, Muneyoshi, Hisanobu, Yoshimasa, etc. They gave Ryokai at the top of their names. Signature was long in general. "Ryokai Yoshisada saku", "Buzen-no-kuni Ryokai Yoshizane saku", "Ryokai Kazuyoshi", etc.

References list :
"Nihon-to Meikan (ISHII Masakuni, Yuzankaku publishing)", "Nihonto kouza 3 Koto vol.2 (HONMA Kunzan, SATO Kanzan as supervisor,s Yuzankaku publishing)", "Nihon-token zenshi 6 (KAWAGUCHI Noboru Rekishi Tosho sha publishing)", "Ô-ita-ken no katana - from Muromachi period -( NAKAHARA Nobuo)"

[ Highlight ] In the form and jiba, it remains Kyo taste, so that it is agreeable attributed to Chikushi Ryokai. The sword should not be younger than the middle age of Muromachi. For mune side of mekugi-ana at omote of nakago, there is small part where the color of rust is different from the other. It can be read as Rai Kunitoshi, as past mei, by detailed observation. The deletion of mei is looked halfway, but, even partially, it tells deep, soft, gloss rust color and
shallow and simple yasurimes. Above all, the intention can be observed that the thickness of nakago would not be reduced further. It makes a favorable impression. There are many points to be researched on Chikushi Ryokai. There is a theory that they survived by the protection of Ô-uchi clan evacuating from the war of Ô-nin in Kyoto, on the other hand, other theory said they were invited by powerful family of Ô-uchi in west province. It shows great interest.

[ Conditions ] Not brand new polishing, with fine flaws. There is a little pale rust which is hard to see by naked eyes. They do not prevent the appreciation. It can be appreciated and conserved as it is.

[ Attachments ] Silver double habaki, shirasaya, bag of shirasaya and NBTHK Hozon paper(issued on 29th January Heisei 21(2009)

[ Item number ] A140616 [ Price ] JPY180.000 (shipping and insurance fee are not included)

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