Previous answer is
Gassan Minamoto Sadakazu

Special feature : The 2nd generation Gassan Sadakazu was born as 3rd son of Gassan Sadakatsu, at Osaka city in 1907. He started to making swords when he was 13 years old. And his first signature was “Sadamitsu”.
This sword was made after he became National treasure and the blade is wide and thick with beautiful engraved typical copy of Hasebe Kunishige.

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Appraisal Quiz #416 (December 3rd, 2016)
Who made this sword do you think ?
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Hints. ※The picture will be enlarged

1 : Hamon of Both sides are almost same.
2 : Jigane is Itame-hada Masanagare strong feeling texture.
3 : Niedeki deep Nioikuchi Hamon.

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