AS19519-Katana: Yagumo Masatoshi(Ryuunsai Showa)

Katana in Shirasaya(NBTHK Hozon Token)

Signature : Yagumo Masatoshi(Ryuunsai Showa)

(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular
saku)
This sword belongs to Saijyo sakku ranking for Masatoshi.
The blade was polished.
Habaki : wood single habaki.
Blade length : 69.4 cm or 27.33 inches.
Sori : 1.4 cm or 0,55 inches.
Mekugi : 1
Width at the hamachi: 3.2cm or 1.26 inches.
Width at the Kissaki: 1,4cm or 0.55 inches.
Kasane :0.76 cm or 0.3 inches.
The weight of the sword 900 grams.
Era: Showa
Shape: The blade is long, wide, and thick with suitable sori and longer kissaki.
Jigane: Koitame had well grained with Jinie attach Mokume had mixed.
Hamon: Nioideki Choji midair Hamon continued from the Hamachi to Yokote
From yoke to the top of the Kissaki, Sunagashi and a lot of Kinsuji scatter.
Bo-shi is round in shape and long Kinsuji work.

Special feature: Yagumo Masatoshi is called Ryuunsai and a well-known sword maker for Choji Midare Hamon.
he is one of the top-ranking swordsmiths in Syowa but
I wonder why he is not be mentioned in so many books even his has excellent skills

NBTHK Hozon Token.
Aoi Art estimation paper
whole Oshigata.