Previous answer is
Mumei(unsigned) attributed as Unsyo.

Special feature : Unsho worked at Bizen Ukan schooland was called Unrui. He has also made calm feeling swords.
It is yamashiro style and is similar to Rai school pieces.
The blade is originally Kodachi which is slender sword.
The blade is very nice texture without kizu and scratches.
On the Shinogiji also item and mokume hada mixed.
It is very fortunate because the shinogiji was not engraved by bo-hi.
If the blade will be polished again, the blade will be changed a lot.

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Appraisal Quiz #287 (April 11th, 2014)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length : 64.0 cm or 25.2 inches.
Sori : 1.6 cm or 0.63 inches.
Mekugi : 1
Width at the hamachi : 3.1cm or 1.22inches.
Width at the Kissaki : 2.15 cm or 0.85 inches.
Kasane : 0.7 cm or 0.28 inches.
Weight of the blade : 725g
Era : Showa period.
Shape : It is wide and thick good meat healthy blade.
Jitetsu : Koitame hada well grained with jinie attached. It is
beautiful hada.
Hamon : Konie base notare ha with gunome midare burn.
There are same flaw of hamon. Ashi is well attached.

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