Previous answer is
Mumei (unsigned) attributed as Monjyu Shigekuni
Special feature:Mojyu Shigekuni was a son of the first generation
Nanki Shigekunni. 2nd generation shigekuni made Monjyu on upper part
of the signature. He was called Monjyu Kinsuke, Shiro-uemon
and worked for Kisyu domain. His sword sometimes almost
as same as Nanki shigekuni. Probably He helped his father.
Appraisal Quiz #564 (November 16th, 2019)
Who made this sword do you think ?
Blade length : 71.2 cm or 28.03 inches.
Sori : 2.1 cm or 0.82 inches.
Mekugi : 1
Width at the hamachi : 3.26 cm or 1.28 inches.
Width at the Kissaki : 2.80 cm or 1.10 inches.
Kasane : 0.82 cm or 0.32 inches.
Shape : This wide and thick sword has O-Kissaki. There’re Bohi carved into on the both side.
Jigane :Ko-Itame Hada well grained with Jinie attach.
The Jigane is clear. There are fine Chikei.
Hamon : Nie Deki, Gunome Midare and double Ha with many Ashi.
In Ha, there are Ashi, Yo, Sunagashi and Kinsuji.
Boshi is round and Midarekomi shape.
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