Ordering number: 22531
Tanto in Shirasaya(NBTHK Hozon Token)
Signature: Bishu Osafune Ju Yokoyama Sukekane(1st)
備州長船住横山祐包(初代)
Keio 2 Nen 8 Gatsu Hi Tomonari 58 Dai Mago
慶應二年八月日 友成五十八代孫
Shinshinto: Chu Jyo saku: Bizen
(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)
This sword belongs to Jyo saku ranking.
habaki: Shakudo and gold painted double Habaki
The blade is polished.
Blade length:28.79cm or 11.33inches.
Sori:0.03cm or 0.01inches.
Mekugi:1
Width at the hamachi:3.08cm or 1.21inches.
Kasane:0.76m or 0.29inches.
The weight of the sword:305grams
Era: The Keio era, the Edo period
Shape: The blade is broad and thick. There is some Suriage Machiokuri, but it doesn’t bother appreciation.
Jigane: Koitamehada is very dense: plain.
Hamon: Niedeki Gunomemidare. Chojimidare of Yokoyama school.
Special feature: Sukenaga and Sukekane from Yokoyama school created this unique Hamon and radicated their own production methods. We wonder how they tried hard to create this unique Choji Hamon.
From Aoi Art: This blade is longer and more solid than normal swords by Bishu Osafune Ju Yokoyama Sukekane. Clear Jigane with strong Chojiba shows unique beauty. We truly recommend this to you.
NBTHK Hozon Token paper
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta
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