Previous answer is
Bizen Kuni Ju Osafune Yozaemon Jo Sukesada/Eiroku 10 Nen Nagatsu Kichijitsu.
Special feature: Bizen Kuni Osafune Yozaemon Jyo Sukesada is a student of Suemitsu.
The Bizen Kuni Osafune Yo so zaemon sukesada is very very close so I think These sword smiths are some relation ship between 2 sword makers.
Appraisal Quiz #648 (July 10th, 2021)
Who made this sword do you think ?
Blade length : 71.5cm or 28.1 inches.
Sori : 1.8cm or 0.70 inches.
Width at the hamachi : 2.85cm or 1.12 inches.
Width at the Kissaki : 2.14cm or 0.84 inches.
Kasane : 0.65cm or 0.25 inches.
The weight of the sword 760 grams.
Shape : Suriage sword with regular width and thickness. Sori is deep and Kissaki is longer.
Jigane : Ko-Itame-Hada with thin Masame. Jinie attached, Chikei and Shirake Utsuri are visible.
Hamon : Niedeki Choji Midare continued. Ko-ashi and Yo worked.
The Choji Midare around Monouchi of back side. Boshi is Midare komi style. Hamon also appear on Shinogi and Mune.
Answer will be posted at next Appraisal Quiz.
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