G6309(W8572)
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Wakizashi unsigned attributed to a work of NAOTSUNA with) Red-brown dim lacquered Spiral scabbard Wakizashi koshirae

Koto Nanbokucho period (Jouwa era about 490 years ago) Iwami
Length of cutting edge45.4cm Curvature0.5cm Width of base28.6mm Width of Yokote25.2mm Thickness of base7.2mm

NBTHK(Tokubetsu Hozon) certificate

with) Red-brown dim lacquered Spiral scabbard Wakizashi koshirae

 

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Blade construction (kengyo) : Naginata-Naoshi-zuruki wakizashi. Shinogi-suji is high. Wide in Mihaba, relatively wide in Hirajii and less volume in Hiraniku. There is shallow curve leading to a extra large Kissaki (105mm) of which fukura is not full. (click HERE for high resolution of the blade photograph)
Forging pattern (kitae hada) : Kitae hada is conspicuous Itame mixing with Mokume hada and flowing Masame indication along tempering pattern. Hiraji surface is covered with sparkling Ji-nie glitter to generate thick Chikei activity that gushes out from steel.
Tempering pattern (hamon) : Hamon is shallow wavy mixing in ranging Gunome and some Togari indication. Habuchi is covered in sparkling Nie granules and the interior of temper is full of whitish Nioi mist which is active with abundant Ashi, frequent Sunagashi and Kinsen Nie streams across Ashi feet. The entire temper is vividly bright, full of Nie activity,
Temper of tip (boshi) : Temper of Boshi is irregular Midarekomi and strongly hakikake brushing away.
Tang (Nakago) : Nakago is Osuriage cut off with shallow kurijiri round heel shape. One Mekugi-ana peg hole. Horizontal(Kiri) file marks.
Smith NAOTSUNA 直綱 has been said one of the 10 genius pupils of MASAMUNE 正宗十哲 (quote) - who lived in the place of Izuha 出羽 in Iwami domain where used to be steel mine (now in Izuha, Onancho Ochigun, Shimane pref. 島根県邑智郡邑南町出羽). First generation NAOTSUNA 直綱, said a son of Saemonnojo MORITSUNA 左衛門尉盛綱 during Jouwa 貞和(1345-49), second gen. Eiwa 永和(1375-78), third gen. Ouei 応永(1394-1427) and fourth gen. Bunmei 文明(1469-86). There are two tachis and one tanto of the second gen. NAOTSUNA which were nominated as the important cultural property 重要美術品.
Japanese sword connoisseur HONAMIs 本阿弥 have been made judgement as a work of NAOTSUNA for those Naginata-naoshi Nanbokucho blade with indication of mixture Shoushu and Bizen-den that shows close resembles to the works of Naoe-shizu 直江志津 in Mino or Chogi 長義 in Bizen.
This wakizashi is, in the usual way, judged as the work of NAOTSUNA 直綱 - Nanbokucho period by the Japanese Sword Preservation Society (NBTHK), TOKUBETSU HOZON papered.　Although it had been active in the Warning States Period, the blade is impressively healty that remains rich and massive volume to understand that it has been treasued by noble Samurais in generations. Entire blade shows a typical shape of Nanbokucho period. Outstanding Itame/Mokume hadaware and ranging Gunome-midare shows mixture of Soushu and Bizen favour.
Red-brown dim lacquered Spiral scabbard Wakizashi koshirae comprising :
(click HERE for each ornamental fitting in detail/click HERE for the entire koshirae fitting)
Original white lay-skin Unohana(deutzia flower) cord lozenge wrapped Hilt
Fuchi/Kashira : Boar/Streams under Pine tree scene,Yamagane stone-finish surface, Shakudo inlay gold Iroe signed Shozui 政隋. (a part of Shakudo stream is missing)
Menuki : Hornets, Shakudo copper ground Yobori
Tsuba : Big waves/Wickerwork motif, Iron ground Cross rectangular shape, Sukibori carving signed Bishu-ju NORISUKE-saku 尾州住則亮作.
Top quality fresh polish/Condition scale: excellent - very good (using a scale of mint-excellent-very good-good-fair-poor) condition.
Preserved in a Shira-Saya plain wood mounting. Gold foiled double layer Habaki collar for Shira-Saya and single layer gold foiled Habaki for Koshirae fitting.
(quote) 10 genious pupils of MASAMUNE 正宗十哲 :
NORISHIGE 越中則重, GO-YOSHIHIRO 江義弘, MINO-KANESHIGE 美濃金重, SHIZU-SABURO KANEUJI 志津三郎兼氏, HASEBE KUNISHIGE 長谷部国重, RAI KUNITSUGU 来国次, BIZEN KANEMITSU 備前兼光, CHOUGI 長義, NAOTSUNA 直綱 and SA 左文字