Previous answer is
　 Mumei attributed as Unji.
無銘（雲次）

Special feature:　Unsho, Unji and Unju lived and forged sword
at Ugai in Bizen province. From the same First Chinese character used
their signatures, they are called Un-rui, means in the category of Un.
They are also called Ukan school from the neme of a place they lived.
One theory holds that Unji was a son of Unsho.
Three dated swords of Unji forged in the Showa era (1312-) ,
Bunpo era (1317-) and Kenmu era (1334-) still survive
and they make clear the period of his activity.
There are several different points on the workmanship
of Un-rui among the swordsmith schools in Osafune province
at that time intermixing Yamashiro style in Bizen-den and influenced
by the neighboring Aoe school in Bishu province, was truly unique.
This katana is an outstanding one judged as Unji.
It shows striking features as the above-mentioned,
keeps good condition and there are many points worthy of appreciation.

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Appraisal Quiz #665 (November 6th, 2021)
Who made this sword do you think ?
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Blade length : 69.4cm or 27.3 inches.
Sori :1.2cm or 0.47 inches.
Mekugi : 2
Width at the hamachi :2.93 cm or 1.15 inches.
Width at the Kissaki : 2.5 cm or 0.98 inches.
Kasane :0.6 cm or 0.23 inches.
The weight of the sword 700 grams.
Era : Late of edo period, Bunkyu era 1861
Shape : Wide but not so thick blade. Sori is regular but Kissaki is longer.
Jigane : Ko-Itame Hada well grained Jinie attached beautiful Jigane.
Hamon : Niedeki Gunome-Midare and Choji-Midare mixed. Clear and bright Hamon with Sunagashi and Kinsuji.

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