Katana, Shirasaya

[ Signature ] omote : no signature　ura : -

[ Size ] Blade length 68.3cm (2 shaku 2 sun 5 bu 4 rin), curvature 1.9cm (6 bu 2 rin), moto-haba base width 2.90cm, Moto-kasane 0.64cm, saki-haba tip width 2.08cm, saki-kasane tip thickness 0.46cm, 3 mekugi holes, blade weight 708g, shira-saya total length 96.5cm

[ Province ] Ecchu

[ Feature ]
Form : Shinogi-zukuri. Iori-mune. Both mihaba and kasane are ordinal. Shinogi-haba width is wide. Saki-zori attached. Chu-kissaki form.
Nakago : Suri-age. Saki is kiri. Yasurime are suji-kai. Three holes.
Jigane : Itame-hada. Mokume mixed. Jinie attached. Shirake-utsuri appeared.
Hamon : Sugu-ha tone with ko-gunome-midare. Habuchi show some loosened part. Nie attached.
Boushi : It is sugu form. Saki becomes sharp. It turns deep.

[ Highlight ] In addition to the Yamato-style features of the sword, such as the wide construction of the ridges and frayed edges, the sword is also characterised by the deep curvature of the tip of the blade, the blade pattern, which is a mixture of coarse and round-grained patterns, and the blackish colour of the blade, and is therefore identified as a sword made by the Uda Hirakuni. The Uda school is a school of sword makers that originated with Kunimitsu, an old priest who moved from Yamato to Etchu (now part of Toyama Prefecture) around the time of the Bunpo era at the end of the Kamakura period. After that, the school flourished greatly during the Muromachi period, and continued on into the Shinto period. Hirakuni is said to have been a pupil of Kunihisa, and created swords in Etchu around the beginning of the Muromachi period, around the time of the Eikyo era. There were several generations with the same name around the same time.

[ Conditions ] Excellent.

[ Attachments ] Habaki (suaka-ji, gold foiled, double), shirasaya, bag of shirasaya and NBTHK Hozon paper 保存刀剣鑑定書(issued on 25th Aug. Reiwa 5(2023))

[ Item number ] A110924 [ Price ] JPY 500,000- (shipping and insurance fee are not included in the price)

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