Previous answer is
Signature : Mumei(Yamato Shizu)

Special feature: Yamato shizu means that Sizu saburo Kaneuji was making swords
at Yamato province. But he and his students moved to Mino province called as Yamato shizu.
This blade mixed Yamato, Soshu and Mino.

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Appraisal Quiz #487 (May 12th, 2018)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length :　46.8　cm or 18.42 inches.
Sori : 2.22 cm or 0.87 inches.
Mekugi : 1　
Width at the hamachi : 2.825 cm or 1.11 inches.
Width at the Kissaki : 2.22 cm or 0.87 inches.
Kasane : 0.61 cm or 0.24 inches.
Shape : Osuriage Mumei, wide and thick Wakizashi.
Kissaki is rather long.
Jigane : Ko-Itame Hada well grained with fine Jinie attach.
Hamon : Choji Midare, Kawazunoko Choji, Gunome Midare
and Togari Gunome Hamon. There are many Ashi and Yo.
In Ha, there are Kinsuji and Sunagashi.
The Ha is bright. Boshi is round shape.
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