Previous answer is
Hizen Koku Kawachi Daijo Fujiwara Masahiro(1st geenration)
Special feature:First generation Masahiro was working for Nabeshima family
and Grandchild of firast generation Tadayoshi.
He made unusual Cumulonimbus cloud style hamon and well repotted from that period.
Even in modern times, many sword collectors collect his swords.
He changed his name to Masahiro on Kanei 2nd November
and got the title Kawachi Daijyo on May as same year.
He passed away Kanbun 5th, Feb, 5th.
His Hamon is Special province of all of swords makers.
2nd generation Tadahiro sometimes made like this hamon but this kind of Hamon was
made by Masahiro as Daisaku.
this blade is healthy and typical his Cumulonimbus cloud hamon.
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Appraisal Quiz #661 (October 9nd, 2021)
Who made this sword do you think ?
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Blade length : 40.0 cm or 15.74 inches.
Sori : 1.2 cm or 0.47 inches.
Mekugi : 1
Width at the hamachi : 3.16 cm or 1.24 inches.
Width at the Kissaki : 3.01 cm or 1.18 inches.
Kasane : 0.51 cm or 0.20 inches.
The weight of the sword : 400 grams.
Shape : The blade is wide and thick Mitu Mune style Katagiri ha style.
On the back side, Bo-hi is engraved healthy blade.
Jigane :Koitame and komokume hada mixed with jinie attach and chikei work
very attractive zanguri hada.
Hamon :Yakidashi hamon can see which is typical with deep
nioikuchi Notare hamon.Bo-shi is round shape and Jozo style and
turns back yakisage.
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