A Shigezane Juyo katana mounted in EDO PERIOD dragon motif koshirae

An excellent well forged blade from the early Nambokucho era the Juyo certificate mentions this blade as a master work amongst all the blades attributed to Shigezane so this confirms this katana is real master piece and one of Shigezane best works . Mounted in Shirasaya with Tanobe Sensei Sayagaki, also has good old Edo period Koshirae with iron dragon Tsuba , Fuchi Kashira are also Dragon motif and Dragon Menuki.

Jūyō-tōken at the 62nd jūyō shinsa from October 18, 2016 katana, mumei: Shigezane (重真)

Measurements
nagasa 68.2 cm, sori 1.4 cm, motohaba 2.85 cm, sakihaba 2.0 cm, kissaki-nagasa 3.3 cm, nakago-nagasa 16.6 cm, nakago-sori 0.1 cm

Description
Keijō: shinogi-zukuri, iori-mune, relatively wide mihaba, noticeable taper, normal kasane, shallow sori, chū-kissaki

Kitae: rather standing-out itame that is mixed with mokume and nagare and that features plenty of ji-nie, fine chikei, and a faint utsuri

Hamon: chū-suguha-chō in nioi-deki with ko-nie and a rather tight nioiguchi that is mixed with angular gunome, many ko-ashi and yō, and sunagashi

Bōshi: sugu with hakikake at the tip and a somewhat pointed ko-maru-kaeri

Horimono: on both sides a bōhi that runs as kaki-nagashi into the tang

Nakago: ō-suriage, almost completely a kirijiri, kiri-yasurime, two mekugi-ana, mumei

Explanation
A theory says that Bizen Osafune Shigezane (重真) was the younger brother of Motoshige (元重). Extant dated works range from the late Kamakura Shōchū era (正中, 1324-1326) to the mid-Nanbokuchō Enbun era (延文, 1356-1361), which matches about with the active period of Motoshige. However, there is also the theory that there were two generations Shigezane. As for his workmanship, we see a kitae in itame-nagare that is mixed with jifu, a suguha-chō hamon that is mixed with a conspicuous amount of angular elements, and a pointed bōshi, thus, altogether a style that reflects Aoe influence and that is close to Motoshige.
This blade shows a rather standing-out itame that is mixed with mokume and nagare and that features plenty of ji-nie, fine chikei, and a faint utsuri. The hamon is a chū-suguha-chō that is mixed angular gunome, gunome, and many ko-ashi and yō, and the bōshi has a somewhat pointed kaeri. Thus, we recognize the characteristic features of Shigezane and are in agreement with the period attribution to this smith. The jiba is perfectly healthy and so we have here a masterwork among all blades attributed to Shigezane.

Jūyō No. 13972

Certificate
Katana, mumei: Shigezane (重真)

Measurements: nagasa 68.2 cm, sori 1.4 cm

Shape: shinogi-zukuri, iori-mune, wide mihaba, noticeable taper, shallow sori, chū-kissaki

Kitae: rather standing-out itame that is mixed with mokume and nagare and that features plenty of ji-nie, fine chikei, and an utsuri

Hamon: chū-suguha-chō with ko-nie that is mixed with angular gunome, gunome, ashi, yō, and sunagashi

Bōshi: sugu with hakikake at the tip and a somewhat pointed ko-maru-kaeri

Horimono: on both sides a bōhi that runs as kaki-nagashi into the tang

Nakago: ō-suriage, kiri-yasurime, two mekugi-ana

According to the result of the shinsa committee of our society we judge this work as authentic and rank it as jūyō-tōken.
October 18, 2016

Nihon Bijutsu Tōken Hozon Kyōkai, NBTHK [President] Sakai Tadahisa (酒井忠久)

 

第六十二回重要刀剣指定品
備前國⻑船重真 大磨上無銘也淡ク乱映立チ地斑調ノ肌合ヲ交ヘル板杢ノ精妙ナル地銕ニ角互乃目主調ノ乱ヲ焼 キ焼頭ハ総体ニ直調トナリ刃中足・葉繁ク入リ元重一類ノ特色ガ明示サレ就中刃取ガ稍小模様 ヲ呈スル點ニ同工ノ見所ガ窺ハル優品也
⻑弐尺二寸五分
時在己亥極月
探山識「花押」

Tanobe Sensei Sayagaki

Dai rokujūni-kai jūyō-tōken shitei-hin
Bizen no Kuni Osafune Shigezane
Ō-suriage mumei nari. Awaku midare-utsuri tachi jifu-chō no hada-ai ni majieru ita-moku no seimyō naru jigane ni kaku-gunome shuchō no midare o yaki yakigashira wa sōtai ni sugu-chō to nari hachū ashi, yō shigeku hairi Motoshige ichirui no tokushoku ga meiji-sare nakanzuku hadori ga yaya ko-moyō o tei- suru ten ni dōkō no midokoro ga ukagaware yūhin nari.
Nagasa ni-shaku ni-sun go-bu
Jizai tsuchinoto-i gokugetsu
Tanzan shirusu + kaō
Jūyō-tōken at the 62nd jūyō shinsa
Osafune Shigezane from Bizen Province
Ō-suriage and mumei. The blade shows an exquisite jigane in itame/mokume that features a faint midare-utsuri and jifu and is hardened in a midareba that bases on an angular gunome whose yakigashira are overall arranged as a suguha and that is mixed with many ashi and yō whereupon we recognize the characteriatic features of the Motoshige group, and within that call, the specific course of the ha with its relatively small dimensioned elements of this masterwork speak for the hand of Shigezane.
Blade length ~ 67.2 cm
Written by Tanzan (Tanobe Michihiro) in December of the year of the boar of this era (2019) + monogram