Wakizashi in Shirasaya with Koshirae(NBTHK Hozon Token)
(We divide 4 sections for each sword as Saijyo saku, Jyo-jyo saku Jyo saku and regular saku)
This sword belongs to Jyo Jyo Saku ranking.
The blade was polished.
Habaki: Silver single habaki.
Blade length:57.8cm or 22.76inches.
Sori:1.6cm or 0.63inches.
Width at the hamachi:2.46cm or 0.97inches.
Width at the Kissaki:2.04cm or 0.8inches.
Kasane:0.62cm or 0.244inches.
The weight of the sword：530grams.
Era : Middle Muromachi Period1469
Shape: mall machio kuri and left whole signature and rather wide and thick with deep sori kissaki long.
Jigane : Yasugi hada appear whole jitetsu and utsuri appear.
Hamon :Nie deki suguha clear and bright . Bo-shi is Mansaku style.
Special feature: The 1980-meter mountain called Negiushi yama, which rises in central Yamagata Prefecture, is also known as the Haguro mountain or Yudono yama. At the top of the mountain is Gassan Shrine, and if you go down yudono yama, you will find a Kaji hut, which is known as an archaeological site. It is also known as the place of training for Yamabushi Buddhist priests. It is said that the initial work did not include the name Gassan, but in the middle of the Muromachi period, it came to be named Gassan.
Saya : black roiro saya, many kisami engraved.
Tsuba :On the syakudo nanko plate, some design is engraved
and mimi is covered by Shakudo.
Menuki : Samurai on the horseback is engraved with gold color.
Kojiri:On the silver plate, a dragonfly is engraved.
Kurikata:on the iron plate, some design is engraved and gold color.
Fuchikashira:a dragon fly is engraved by silver plate.
From Aoi Art: Gassan is an old work (before Nanbokucyou, the sword stem was not inscribed. The inscription is in the middle of the Muromachi period. Ko-Gassan has few in-brand items and is said to have been unbranded before that. This work is judged to be around the middle of the Muromachi period because it is inscribed. It is a solid work, so I highly recommend it. It is also common in Gassan this time.
NBTHK Hozon Token
Aoi Art estimation paper: whole Oshigata.