Previous answer is
　　　Hizen Koku Oumi Kami Tadayoshi (6th Generation)

Special feature: Hizen Koku Oumi Kami Tadayoshi 6th was named Tadahiro
during his father still alive. He was got a name Oumi Kami
Tadayoshi in Jun of 1790. His sword style is same as 5th
generation. He was dead on February 6th 1815.

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Appraisal Quiz #625 (January 30th 2020)
Who made this sword do you think ?
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Blade length : 69.7 cm or 27.44 inches.
Sori : 1.4 cm or 0.55 inches.
Mekugi : 1
Width at the hamachi : 2.76 cm or 1.08 inches.
Width at the Kissaki : 1.90 cm or 0.74 inches.
Kasane : 0.62 cm or 0.24 inches.
Shape : Regular size katana with deep Sori.
Jigane : Ko-Itame Hada well grained with Jinie attach. There are Utsuri.
Hamon : Nie Deki, Suguha style with Ko-Ashi attached.
There are Sunagashi and Kinsuji.

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Answer will be posted at next Appraisal Quiz.

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(Please acknowledge not replying to mail about Appraisal Quiz by our convenience.)Appraisal Quiz #625