Ordering number: 22581
Katana in Shirasaya(NBTHK Hozon Token)(consignment sale)
Signature: Bishu Osafune Tsuneie
備州長船経家
Eisho 16 Nen 2 Gatsu Hi
永正十六年二月日
(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: Silver single Habaki
The blade is polished.
Blade length:66.9cm or 26.33inches.
Sori:1.9cm or 0.74inches.
Mekugi:1
Width at the hamachi:3.04cm or 1.19inches.
Width at the Kissaki:1.88cm or 0.74inches.
Kasane:0.68cm or 0.26inches.
The weight of the sword:580grams
Era: Around the late Muromachi period
Shape: The blade is broad and thick with deep Sori and longer Kissaki.
Jigane: Koitamehada is really dense. One-handed(Katateuchi) blade. Slightly short. Utsuri comes in to Ji.
Hamon: Niedeki Suguha. Nijuba fades in and becomes calm Suguha.
Special feature: Bishu Osafune Tsuneie is a swordsmith group that has five generations, that continued from the Sho-oh era to the Eisho era, the Muromachi period.
From Aoi Art: Jigane is soft and the blade is formed one-handed, so this must be made in the Eisho era. NBTHK judged that Tensho was faked into Eisho, but we don’t think it is true. We believe that “Eisho 16 Nen 2 Gatsu Hi” is genuine. Especially, Jigane in the Eisho era and Tensho era are totally different, and the Eisho works tend to be shorter in Nakago.
NBTHK Hozon Token paper
Aoi Art estimation paper: whole Oshigata by Ayaka Tsuruta
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