Previous answer is
Mumei (attributed as Hatakeda Sanemori)

Special feature : Hatakeda Sanemori was a son of the Hatakeda Moriie and they worked from Kenji era to Koan, Seiou era.
Compare with Osafune swords, Hatakeda school is more active Cyoji midare, Kawzako cyoji midare hamon which is very bright marvelous active haamon.
This sword has very clear midare utsuri on the ji, and very active cyoji midare and kawazuko choji and yo work.

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Appraisal Quiz #307 (September 5th, 2014)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

The blade was polished.
Blade length : 26.2 cm or 10.31 inches.
Sori : No Sori
Mekugi : 1
Width at the hamachi : 2.42 cm or 0.95　inches.
Kasane : 0.51 cm or 0.2 inches.
Era : Kamakura period.
Shape : Mitsu Mune, 2 Suji-Hi, Bonji and Ken.
Jitetsu :Ko-Itame Hada and Ko Mokume Hada mixed with fine Jinie and Chikei. This is beautiful Jigane.
Hamon : Ko-Nie Deki Suguha. In Ha, there are many Sunagashi and fine Kinsuji.

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Answer will be posted at next Appraisal Quiz.

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