The answer was
Tanba Ayabe Jyu Kato Unjyu Nobukazu Saku No

Special Feauture :
Tanba Ayabe Jyu Kato Unjyu Nobukazu was a student of the Ishido Unjyu Korekazu and made many swords for his master, so his own swords are few.

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Appraisal Quiz #431
Who made this sword?
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Hints. ※The picture will be enlarged

1: Jigane looks Chirimen hada.
2: Ubu nakago.
3: Deep sori
4: Shinogi ji is almost sama as same Hiraji texture.
5:Generally his school cut the signature o the katana mei but this swordsmith made different place.
6:Very clear Utsuri appear on the zji.

Blade length : 79.72 cm or 31.38 inches.
Sori : 4.54 cm or 1.78 inches.
Mekugi : 3
Width at the Hamachi : 2.89 cm or 1.13 inches.
Width at the Kissaki : 2.85 cm or 1.12 inches.
Kasane : 0.65 cm or 0.26 inches.

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Answer will be posted at next Appraisal Quiz.

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