Previous answer is
　Shintan Amada Akitsugu Saku Kore(Living National Treasure)
Showa Kanoto-I Nen 2 Gatsu Hi(Feb 1971)
真鍛天田昭次作之(人間国宝)
昭和辛亥年二月日　　　　　　　

Special feature : Known by his real name, Seiichi Amada, he was born in Niigata Prefecture in the second year of Showa (1927). He studied under Hikosaburo Kurihara and welcomed the end of the war in Tokyo. After returning to his hometown in Niigata for a while, he began forging swords under the name Sho-ji in 1954 (Showa 29) after receiving authorization from the Cultural Properties Protection Committee. At technical presentations, he won excellence awards. From 1973 (Showa 48), he forged the "Ise Jingu Shikinen Sengu Goshintou" swords for the Ise Grand Shrine on three occasions. In 1997 (Heisei 9), he was designated a Living National Treasure (Holder of Important Intangible Cultural Properties), and he passed away in 2013 (Heisei 25).

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Appraisal Quiz #786 (March 169th, 2024)
Who made this sword do you think ?
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Blade length: 74.2 cm (29.23 in)
Curvature: 2.4 cm (0.95 in)
Mekugi holes: 2
Width at the base: 3.0 cm (1.18 in)
Width at the tip: 1.87 cm (0.74 in)
Thickness of rim (Kasane): 0.73 cm (0.29 in)
Sword weight: 770 grams.
Shape: wide adn thick blade with deep curve and extended kissaki.
Jigane: itame with pale whitish utsuri
Hamon: The temper line is lively with a rounded appearance mixed with sharp gunome, reaching the shinogi. Boshi is midare and turns back.

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