Previous answer is
Bizen Suke Munetsugu/Bunkyu Gannen 12 Gatsuhi
Special feature: First generation Bizen no suke Munetsugu (Koyama Munetugu )
was born at Mutsu Shirakawa province as a son of Koyama Munehira.
His name was Soubei.
He was working for Matudaira Daimyo family as a sword making Samurai.
He moved to Kuwana province with his master and then he moved to
Edo at Tenpo 2 nd year.At that time he was high reputation of cut well
swords maker. some times we found his swords which was done
Saidanmei and also possession name on the tang of the blade.
Generally speaking the quality of Munetsugu is one of the top sword
smith in late Edo period and without any faults among his swords.
Appraisal Quiz #484 (April 14th, 2018)
Who made this sword do you think ?
Hints. ※The picture will be enlarged
Blade length : 72.0 cm or 28.34 inches.
Sori : 2.3 cm or 0.90 inches.
Mekugi : 1
Width at the hamachi : 3.30 cm or 1.29 inches.
Width at the Kissaki : 2.13 cm or 0.83 inches.
Kasane : 0.75 cm or 0.29 inches.
Shape : The blade is wide and thick with deep sori nice looking shape.
Jitetsu :Koitame hada well grained with jinie attach beautiful texture.
Hamon : From Hamachi area, suguha with thick nioikuchi
and then gunome midare like doranba hamon.
Boshi is also thick nioikuchi round shape.