Previous answer is
　　Echigo Kuni Yoshimitsu/Showa 68 Gatsu Kichijitsu
　

Special feature: Echigo Kuni Yoshimitsu is working as Mukansa sword smith. He was born in 1948 at Nigata,
became disciple of Yoshihara Yoshindo in 1967 and start to make a Japanese sword.
After that, he got a lot of award and became Mukensa in 1983. Most of his peace is copy of Ichimonji
but he also make calm sword, copy of Hizen Yoshimitsu like this one.

==============================================
Appraisal Quiz #603 (August 22nd, 2020)
Who made this sword do you think ?
==============================================

Blade length :　66.5　cm or 26.1inches.
Sori :1.4 cm or 0.5 inches.
Mekugi : 　3 (2 are filled)
Width at the hamachi : 3.09 cm or 1.21 inches.
Width at the Kissaki : 2.17 cm or 0.8 inches.
Kasane : 0.61cm or 0.24 inches.
The weight of the sword 590 grams.
Shape : Bohi are engraved on both side. regular width and thickness, deep Sori and longer Kissaki.
Jigane : Itame-hada, Hada-tachi niedeki attached and Chikei work.
Hamon : Niedeki Funomemidare with Notare. Nijuba, Sunagashi, long Kinsuji worked.

Hints. ※The picture will be enlarged