Previous answer is
　　Mumei (Osafune Yoshikaage) 　

Special feature: Yoshikage was a son of the Kagemitsu
and a student of the Chikakage. His subject was influenced a lot
from his father Kagemitsu especially Kataochi gunome midare hamon.
The blade is active kogunome midair with ashi,
from the Monouchi area to Kisski, very
active así, yo , sunagashi and kinsuji scatter in Hamon.
Bo-shi is midarekomi style with kinsuji work.

==============================================
Appraisal Quiz #607 (September 19th, 2020)
Who made this sword do you think ?
==============================================

Blade length : 74.0 cm or 29.13 inches.
Sori : 1.1 cm or 0.43 inches.
Mekugi : 3
Width at the hamachi : 2.81 cm or 1.10 inches.
Width at the Kissaki : 1.9 cm or 0.74 inches.
Kasane : 0.68 cm or 0.26 inches.
The weight of the sword 615 grams.
Shape : Osuriage Katana. Omote side is Shinogi Zukuri.
Ura side is Hirauchi Zukuri. It is a very rare and valuable sword.
Jigane : Itame hada and Mokume Hada mixed with Jinie attach.
The Jigane is beautiful Chirimen Hada.
There are Chikei and Utsuri.
Shinogi-ji: Ko Itame and Mokume hada mixed with fine Masa.
Hamon : Nie Deki, thick Nioikuchi with many Ashi and Yo.
In the Ha, there are many Sunagashi and Kinsuji.
Boshi is round shape.

Hints. ※The picture will be enlarged

================================================