Ordering number: 21282
Katana in Shirasaya with Koshirae(NBTHK Hozon Token)
Signature :Mutsu Shirakawa Ju Koyama Munetoshi
Keio Gannen 8 Gatsuhi
Shinshinto : Chu-jyo saku :Iwaki
(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.
habaki: Silver single Habaki
The blade was polished.
Blade length: 70.9cm or 27.9inches.
Sori:1.2cm or 0.47inches.
Width at the hamachi:3.31cm or 1.30inches.
Width at the Kissaki:2.20 cm or 0.86inches.
Kasane:0.76cm or 0.29inches.
The weight of the sword: 950grams
Era: August of Keio 1, the Edo period
Shape: The blade is broad and thick with long Kissaki. It has Ububa left.
Jigane: Koitamehada is grained well with Jinie. Beautiful color.
Hamon: slightly inclined Choji-midare which apparently looks like Yokoyama school. Nioikuchi is deep. Boshi is Midarekomi.
Special feature: Mutsu Shirakawa Ju Koyama Munetoshi is said to be the elder brother of Munetsugu. His works has similar Hamon to Munetsugu, but it is a little bit inclined. However Nioikuchi is deep and he is really skilled.
Tsuba; Mokko-shaped iron Tsuba. Prayers are engraved with colors.
Fuchikashira: On Shakudo plate, waterfall and eagle are engraved. Mei: Mito Ju Tamagawa
Saya: Saya imitating cherry tree
Menuki: Brass plate. Bamboo is engraved.
From Aoi Art: You can enjoy great Hamon by Mutsu Shirakawa Ju Koyama Munetoshi. Koshirae has great engraving like eagle and prayers. Besides, it is 950grams heavy with great Jigane: it is a really well-made work. We truly recommend this one.
NBTHK Hozon Token paper
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta