Previous answer is
OMumei (Tametsugu)

Special feature : Tametsugu is reported as a son of the Go Yoshihiro
and studied under the Norishige.
His subjects are gunome midair with thick nioikuchi ooitame hada.
This blade is best quality in his work. It looks like Go Yoshihiro's blade.
There are many long Kinsuji in Ha. This blade is masterpiece of Soshu-den.

==============================================
Appraisal Quiz #274 (January 17th, 2014)
Who made this sword do you think ?
==============================================

Hints. ※The picture will be enlarged

Blade length : 59.2cm or 23.31inches.
Sori : 0.9cm or 0.35inches.
Mekugi : 2
Width at the hamachi : 2.3cm or 0.35inches.
Width at the Kissaki : 1.19cm or 0.47inches.
Kasane : 0.63cm or 0.25inches.
Shape : Slightly wide and regular Kasana, Kissaki is a bit long. shallow Sori Wakizashi.
Jitetsu : Ko-Itame hada well grained with Jinie attach.
Hamon : Suguha deki and Gunome Midare with deep Nioikuchi.
Oo-Gunome and Doranba. In Ha, there are many Sunagashi and Kinsuji.
Boshi looks like head of snake, deep Nioikuchi Yakisage style.

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

Answer will be posted at next Appraisal Quiz.

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

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