Katana in Koshirae
Signature : Doshu Kokufu Soryushi Sadayuki Kao
Showa 57 Mizunoe Inu Sai Hazuki Hi (August 1982)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku
Jyo saku and regular saki)This Doshu Kokufu Soryushi Sadayuki belongs to jyo saku ranking.
The blade was polished by good polisher.
Blade length : 76.9 cm or 31.33 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 1
Width at the hamachi : 3.39cm or 1.33 inches.
Width at the Kissaki :2.75 cm or 1.08 inches.
Kasane : 0.92 cm or 0.36 inches.
Era : modern times.
Shape : The blade is wide and thick with ookissaki gorgeous blade.
Jitetsu :Koitame had well grained with Jinie attach wonderful texture.
Hamon : Niedeki gunome midair and cyoji midair mixed and in Hamon, ash and yo work.
Boshi is round shape.
Special feature : Dosyu Kokuhu So-Ryushi Sadayuki was born at Meiji 42nd and named Yu Yamamura.
He was working at Tosa province during war time as a student
of the Kawashima Cyuzen(Tadayoshi) who was also well known one of the top ranking wordsmith during war time.
He is very skillful for making Jigane and also nice Hamon.
According to the story, he also imitate Sa Yukihide sword.
This blade is good Jigane and Hamon.
Tsuba :On the iron Tsuba, some branches and flower are engraved open work. Higo style.
Fuchikashira :iton plate.
Saya : black roar saya.
Menuki :flowers are engraved by copper plate.
Aoi Art estimation paper : whole Oshigata.