Previous answer is
　 Hizen Koku Saga Ju Fujiwara Masahiro　

Special feature: Masahiro is a swordsmith of Hizen province.
He has born as the First son of Yoshinobu and adopted to the First Tadayoshi. Masahiro got the title of Kawachi Daijo in 1628.
It is said that Masahiro supported exertly Omi Daijo Tadahiro
and the family head. Masahiro passed away in 1665, aged 59.
His brilliant Hamon reminds us of a cumulonimbus cloud in summer.
Many sword collectors love his Hamon that is rich in originality.
Even if the Hamon is Suguha, the thick Nie attractive to us.
This sword is fantastic Ashinaga Choji Midare Hamon
with thick Nioikuchi and Sunagashi, Kinsuji scatter.

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Appraisal Quiz #580 ( March 14th, 2020)
Who made this sword do you think ?
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Blade length : 68.8cm or 27.08 inches.
Sori : 2.0 cm or 0.78 inches.
Mekugi : 2
Width at the hamachi : 3.1 cm or 1.22 inches.
Width at the Kissaki : 2.0 cm or 0.78 inches.
Kasane : 0.66cm or 0.25 inches.
Shape : The blade is regular widthm thickness
with deep sori and longer kisski.
Jigane :Koitame hada and mokume hada mixed
with jinie aattach beautiful nice texture.
Hamon :Nie deki round style gunome midare from the Hamachi to
Yokote line. Inside of the Hamon, sunagashi and kinsuji work.

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