O120417(W7358)
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Wakizashi signed KANEMICHI-saku with)Waist Black Lacquered Silver Ring Notches Scabbard Chisa-katana style koshirae

Koto End of Muromachi period (Eiroku era about 450 yeas ago) Mino
Length of cutting edge32.0cm Curvature0.4cm Width of base28.2mm Thickness of base6.1mm Width of Yokote23.8mm

NBTHK(HOZON) certificate

with)Waist Black Lacquered Silver Ring Notches Scabbard Chisa-katana style koshirae

Sugata(configuration) : Hira-zukuri, Iori-mune. Long tanto. There is a slight sakizori curve and fukura (upper cutting edge) is prominent. The entire blade is heroically made and stout. There is chiselled half way bo-hi grooves on both sides. 
Kitae(forging pattern) : Kitae-hada is conspicuous itame hada mixing in with large mokume, entwined flowing masame hada. The surface is covered in with sparkling Ji-Nie activity that generates thick Nie lines of Chikei scene over the surface.
Hamon(tempering pattern) : Hamon is Ko-nie based gunome-midare of which head is round and waist is narrow adding some tobiyaki temper spot marks here and there. Thick nie feet works toward the cutting edge. The interior of temper is filled in deep Nioi and Sunagashi blushing activity works frequently.The entire temper gives off vivid and strong light.
Boshi (tip): The temper of the tip waves into medium circle then turns back deeply so called JIZOU shape.
Nakago(tang) : UBU un-altered, cross over (Higaki) filemarks and round kurijiri heel. One mekugi-ana. The signature in hakiomote is located in center, thick chiselled three character that reads Kane Michi Saku.
This is a work of smith KANEMICHI who named himself as the 9th generation Shizu Saburo KANEUJI. As seem from the subject blade, it's workmanship, especially forging method shows Sōshu school technique although his own home Mino school favor can be seen from it temper pattern. He enjoyed Saemon-no-jo and Mutsuno-kami title in 1596 (12 th year of Eiroku) and changed his name O-Kanemichi or Mutsunokami Daido. His eldest son Iganokami Kinmichi established a Mishina school in Kyoto and had been flourished throughout Edo period holding a special privilege to nominate the title of sword smiths on behalf of imperial family. Also his second son Rai-Kinmichi, Third son Tanbanokami Yoshimichi and Fourth son Echunokami Masatoshi, all of them had become top famed and admired sword smiths. This wakizashi or identified as an extra sized tanto (Sun-nobi Tanto) was possibly made in earlier year of Eiroku period and its forging technique is true Itame under Sōshu school favour and frequent Nie lines Sunagashi shows the initial stage of SUDARE-ha workmanship (like a scnene of Bamboo Blind). This is a representative works of KANEMICHI, the founder of Mishina school, pre Momoyama period.
The Waist Black Lacquered Silver Ring Notches Scabbard Chisa-katana style koshirae consists of:
Fuchi/Kashira : signed MASANAGA(a seal of artisan), Shōki-motif, Shibuichi copper alloy ground Suaka copper, Shakudo and silver Iroe inlay
Menuki KIKU : chrysanthemum and Autumun flower design, Shakudo ground Yobori, Gold Iroe inlay
Tsuba KIKU : chrythanthemum flower motif, Iron ground openwork
Hilt : White rayskin, purple lozenge cord wrap.
Scabbard : Waist Notches black RO-IRO style Japanese lacquered /58 Silver Ring Notches with silver ground stone surface Kojiri end.
Copper habaki collar, Preserved in a Shira-saya plain wood mounting