Katana in Shirasaya (NBTHK Tokubetsu Hozon Paper)
Signature : Izumi Kami Kunisada (Inoue Shinkai)
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This Kunisada belongs to Jyojyo saku ranking.
The blade was polished.
Blade length : 71.21 cm or 28.03 inches.
Sori : 0.96 cm or 0.37 inches.
Mekugi : 2
Width at the hamachi : 3.06 cm or 1.20 inches.
Width at the Kissaki : 2.23 cm or 0.87 inches.
Kasane : 0.62 cm or 0.24 inches.
Era : Edo Kanbun period.
Shape : It is 2 Sun(6 cm) Suriage, Machiokuri work. It is thick and wide piece with shallow sori.
Jitetsu : Koitame hada well grained with Jinie attached. It is clear jigane.
Hamon : Nie deki Gunome midare with deep Nioiguchi. It is round burned end deeply.
Special feature : As his father was so old, Shinkai forged on his behalf.
Examining the workmanship, we completely convinced with this opinion.
Inoue Shinkai was born as the Second son of Kunisada the First in 1630.
Shinkai used the swordsmith name Kunisada on his early works.
He worked as a ghost smith of his father around Keian era.
Shinkai got the title of Izumi (No) Kami in 1652.
The Imperial Court approved him to carve the chrysanthemum crest on the tang in 1661.
He passed away in 1682, aged 53. He had the reputation of Namba-Masamune.
In Settsu, Sukehiro and Shinkai is most famous swordsmith and they are called to two Yokozuna rank swordsmith.
Unlike Sukehiro, there is only few swords were made by him. It was mostly wakizashi.
This is Suriage work but the signature is absolutely the signature of Inoue Shinkai and Wakauchi work.
The jigane is excellent not to mention it is Saijyo saku ranking.
There is mixture of sunagashi and Kinsuji work.
NBTHK Tokubetsu Hozon Paper
Aoi Art estimation paper : whole Oshigata.