Previous answer is
Sekido Unju Korekazu Seitan/Keio 1nen 8 gatsu hi(August 1865)
Special feature : Korekazu studied from his uncle Cyounsai Tsunatoshi and succeeded 7th generation Ishido family.
He made soden bizen which mixed up Bizen and sosyu school.
He edicated many sword maker like Sumi Motooki, first generation Norikatsu.
Especially Sumi Motooki’s The hamon and Jigane is quite same as his master Korekazu.
I think Motooki helped a lot for his master Korekazu.
This blade is long and thick wide with longer kissaki gorgeous sword. Untol now, Korekazu got the Jyuyo Token about 20 peaces.
I checked the Hamon of the sword carefully and can say the sword is one of the best active marvalous sword.
The hamon is qute active sosyu den and Bizen den mixed up.
Boshi is active vvivid wildish hamon.
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Appraisal Quiz #383 (April 15th, 2016)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged
Blade length : 62.72 cm or 26.66 inches.
Sori : 1.8 cm or inches.
Mekugi : 2
Width at the hamachi : 2.73 cm or 1.07 inches.
Width at the Kissaki : 1.96 cm or 0.77 inches.
Kasane : 0.55 cm or 0.21 inches.
Shape : Osuriage Mumei, elegant shape Katana. There are Bo-Hi on both side.
Jitetsu : Itame Hada well grained with Jinie attach. The mixture of Mokume Hada.
There are Utsuri on the Ji. The Jigane is the best quality.
Hamon : Ko-Gunome Midare with Nie. There are Ko-Ashi and Kinsuji.
In Ha, the Nioikuchi is thick and soft. Boshi is also same and likes Yakizume.
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