Previous answer is
　　Bizen Koku Osafune Ju Sukesada Saku/Genroku 16Nen 8 Gatsuhi　

Special feature:In the Edo period, Bizen sword maker district was flooded
with the Yoshino River during the Muromachi period and the
demand for swords dropped sharply because war was end.
The momentum was completely lost.
However, the representative is Kozuke Daijyo Sukesada swordsmith
in Bizen started to make swords with together at Bizen.
It came to be booming again. This sword has Uramei Genroku 16 Nen 8 Gatatsu hi
which is precious data.
The blade is healthy and healthy Hamachi and also Ububa.
We recommend this healthy blade for you.

==============================================
Appraisal Quiz #611 (October 17th 2020)
Who made this sword do you think ?
==============================================

Blade length : 68.6 cm or 27.0 inches.
Sori : 2.0 cm or 0.78 inches.
Mekugi : 2
Width at the hamachi :3.3 cm or 1.29 inches.
Width at the Kissaki : 2.8cm or 1.10 inches.
Kasane : 0.73cm or 0.28 inches.
The weight of the sword 835 grams.
Shape : O-Suriage wide and thick Katana with large Sori.
There are Bo-Hi on both side of the blade.
The Kissaki is O-Kissaki.
Jigane : The mixture of Itame Hada and Mokume Hada
with Jinie attach. visible to see the texture.
Hamon : Nie Deki, Ko-Gunome Midare with small Ashi.
In the Ha, there are Kinsuji. Boshi is Midarekomi style.

Hints. ※The picture will be enlarged