Previous answer is
Mumei (Den MOTOSHIGE)

Special feature:Osafune Motoshige is confirmed from Seiwa era 5 nen.(1316)
to Nanbokucho period Jouji era. (about 1362) It is said there are 1st and 2nd generation meanwhile.
This blade is Suguha-hamon with tight Nioikuchi and Saka-Ashi like a Aoe.
This Kodachi style blade is very rare around that time.
This fantastic blade has signature and also uramei (Nengo) which is very precious item.
We strongly recommend this fantastic blade for your collection.

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Appraisal Quiz #522 (January 19th, 2018)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length :　73.7　cm or 29.015 inches.
Sori : 1.1 cm or 0.43 inches.
Mekugi : 1　
Width at the hamachi : 3.18 cm or 1.25 inches.
Width at the Kissaki : 2.22 cm or 0.87 inches.
Kasane : 0.78 cm or 0.30 inches.
Shape : wide and thick, Okissaki blade.
Jigane : Itame Hada well grained with Jinie attach.
The Jigane is blakish and Hadadatsu. There are Chikei.
Shinogi-Ji: Itame Hada and Masame Hada with Yaki.
Hamon : Nie Deki, Gunome Midare with thick Nioikuchi.
O-Gunome and Doranba. From Monouchi part,
thick Nioikuchi Suguha with many Ashi.
Boshi is Midare Komi round shape.

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Answer will be posted at next Appraisal Quiz.

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