Previous answer is
　 Suishinshi Masatsugu(Kao)
Tame 72 Okina Matsuoka Naoatsu Zo Kore
Engraving was done by Yoshitane.水心子正次

Special Feature: Suishinshi Masatsugu is a sword smith from Naotane
school and succeeded to Kawabe family and passed away in
November, 1860. The style resembles Naotane, very good at Soshu-den and Bizen-den.

==============================================
Appraisal Quiz #669 (December 4th, 2021)
Who made this sword do you think ?
==============================================

Blade length : 73.36cm or 28.9 inches.
Sori :1.67 cm or 0.66inches.
Mekugi : 1
Width at the hamachi : 3.24cm or 1.28 inches.
Width at the Kissaki : 2.17 cm or 0.68inches.
Kasane : 0.7 cm or 0.276
The weight of the sword 865 grams.
Shape : The blade is wide and thick with suitable sori and longer kissaki nice looking shape.
Jigane :Koitame hada well grained with jinie attach and chikei work actively and visible to see the texture well.
Shinogi ji The gigante is almost as sama as Jigane.
Hamon :Nie deki suguha, and kogunome midare and small aasje workand
also kuichigai hamon clear bright hamon.

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

Answer will be posted at next Appraisal Quiz.

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

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