Wakizashi
Ordering number:04139Wakizashi: NBTHK Hozon-token.
Signature: unsigend, attributed to Ko-Uda.
The blade is polished, with a habaki, in a shirasaya.
Blade length: 49.05cm or 19.31 inches Sori: 1.3cm or 0.51inch. Width
at the hamachi: 2.75cm or 1.08inches.@Thickness at the hamachi: 0.52cm
or 0.20inch.
Era: Nambokucho period. 14th century.
Shape: A naginata-naoshi wakizashi.
Horimono: Naginata-hi is carved on the both sides of
the blade.
Jitetsu: Masame covers on the clear itame-hada. Jinie
and chikei appear there.
Hamon: Nijyu-ha and kinsuji appear along the suguha-hamon.
The Uda school is said to have originated in Yamato province. The founder Kunimitsu moved to Ettyu province in the last Kamakura period. It is said that his son, Kunifusa learned under Norishige who created a peculiar texture of jitetsu compounded soft and hard iron commonly called matsukawa-hada or Norishige-hada in Japanese. Consequently the texture of jitetsu is a point worthy of appreciation of Uda School that was very good at making use of well-tempered iron's special qualities. Especially conspisious chikei appeals us strongly.
