Ordering number: AS22184
Katana in Shirasaya(NBTHK Hozon Token)
Signature :Hizen Kuni Kawachi Daijo Masahiro
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo saku ranking.
The blade was polished.
Blade length :44.8 cm or 17.63inches.
Sori:1.3cm or 0.51inches.
Width at the hamachi:3.05cm or 1.20inches.
Width at the Kissaki:2.28cm or 0.89inches.
Kasane:0.64cm or 0.25inches.
The weight of the sword:505grams
Era: The Kanei era, the Edo period
Shape: The blade is broad and thick with deep Sori and longer Kissaki
Jigane: Koitamehada is grained with Jinie to be Konuka Hada: Hizen Jigane.
Hamon: Niedeki Gunomemidare with deep Nioikuchi. It looks like a scenery of the thunderstorms runinng through the summer clouds in a blue sky.
special feature: Hizen Masahiro the 1st is a son of Yoshinobu and was originally called Masanaga, and changed his name as Masahiro in Kanei 2. He is said to have succeeded to Kawachi Daijo in Kanei 5, but we never saw his works with Kawachi Daijo Mei before Kanei 19. It is said that he passed away at the age of 59, in Kanbun 5. This work has his true characteristics, Sunagashi and Kinsuji that look like thunderstorm, which appears in summer clouds. Nobody in the same era could do the same thing, and we think he deserved Jyo-jyo saku or Sai-jyo saku, though he is judged as Jyo-saku in Shinto-Taikan.
From Aoi Art: This is a powerful work by Kawachi Daijo Masahiro the 1st. Gunomemidare work with deep Nioikuchi, it has also strong atmosphere.
NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta