Previous answer is
Yamato Kami Yasusada
Special feature : Yamato Kami Yasusada was born at 1618 Echizen or Ishido province.
According to the recent data, he was born at Ishido province and influenced a lot from Echizen first generation Yasutsugu.
His first name was Tobita and real name was Sobei.
He moved to Edo and stayed at Kanda area under the Kaneshige school.
He studied from Kaneshige and also influenced from Kotetsu a lot.
His subject is very similar Kotetsu hamon which is gunome and doranba square shape style gunome midair.
This sword is very bright and fantastic thick and soft gunome midair hamon like Kotetsu.
I think this sword is rank with Jyuyo token high ranking sword.
We saw many gold inlayed Saidanmei Yasusada.
This sword doesn’t have saidanmei but the quality is wonderful bright and elegant doranba hamon which feels attracted an illusion of charm.
From Edo period, Shinsengumi Okita Soshi and Oishi Kuwajiro loved Yasusada because of cut well sword.
The blade is perfect high ranking polished and wonderful texture and also Hamon which is rarely comes out wonderful sword.
We strongly recommend this sword.
==============================================
Appraisal Quiz #295 (June 13th, 2014)
Who made this sword do you think ?
==============================================
Hints. ※The picture will be enlarged
Blade length : 68 cm or 26.77 inches.
Sori : 0.6 cm or 0.24 inches.
Mekugi : 1
Width at the hamachi : 2.74 cm or 1.07 inches.
Width at the Kissaki : 2.05 cm or 0.80 inches.
Kasane : 0.63 cm or 0.24 inches.
Weight of only blade : 630g
Hints
1. Originally, he was successful as a mirror craft man. Later on, he become successful sword smith.
2. The hamon is round shape gunome midare. There is sunagashi and kinsuji works.
3. The jitetsu is itame hada well grained. Chikei works appear too.
4. Please see the Nakago-jiri in the picture.
5. Kissaki of most of this sword smith piece is long end with midare komi style.
================================================
Answer will be posted at next Appraisal Quiz.
================================================
(Please acknowledge not replying to mail about Appraisal Quiz by our convenience.)