Previous answer is
Hizen Kuni Kawachi Daijo Masahiro (first generation)

Specila feature: Hizen koku Kawachi Daijo Fujiwara Masahiro was
a son of the Yoshinobu who was called Masanaga and at kanei 2nd November
he changed his name to Masahiro. He passes away at Kanbun 5th Feb, 5th age 59.
He made many swords for 2nd generation Tadahiro.
He made unusual Cumulonimbus cloud style hamon and well repotted from that period.
Even in modern times, many sword collectors collect his swords.
This blade is thick nioikuchi gunome midare hamon and looks first generational
of the Musashi daijyo Tadahiro. We undestand the high technique of his blade.
The sword is very healthy without Kizu and flow.
And also the blade was polished by highest ranking polisher.

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Appraisal Quiz #509 (October 20th, 2018)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

Blade length : 69.8 cm or 27.5 inches.
Sori :1.0cm or 0.4 inches.
Mekugi : 1
Width at the hamachi : 3.07cm or 1.21 inches.
Width at the Kissaki : 2.15 cm or0.85 inches.
Kasane : 0.69cm or 0.27inches.
Shape : The blade is rather wide and thick with suitable sori and longer　kissaki nice looking shape.
Jigane :Koitame hada well grained with jinie attach beautiful nice jigane.
Hamon :Niedeki ashinaga choji midare(long ashi reached to Hasaki) with　sunagasi, kinsuji work
Shinogiji: Koitame hada and mokume hada with small masanagare.
Boshi: beautiful nice round shape.
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