Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
This katana by Nagaguti Sadaharu, a student of Gassan Sadakatsu, was made in 1865 (Keio 1) for the Masuda family of Matsumoto Domain. It features a wide blade, large kissaki, and moderate sori, with a thick kasane for durability and bo-hi carvings for balance. The ko-itame hada is tightly forged with ji-nie, and the hamon is gunome-midare with nioi-guchi and kinsuji, culminating in a ko-maru boshi.
NihontoWatchmei · Keio (1865-1868) · nagasa 68.48cm · sori 1.39cm
Shinshinto · Settsu · around 1865-1868
Tōken Taikan top 95%
7 pieces on the market now
Shinshinto · Settsu
41 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Naonobu直信 | 1854-1860 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
If, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
This katana by Nagaguti Sadaharu, a student of Gassan Sadakatsu, was made in 1865 (Keio 1) for the Masuda family of Matsumoto Domain. It features a wide blade, large kissaki, and moderate sori, with a thick kasane for durability and bo-hi carvings for balance. The ko-itame hada is tightly forged with ji-nie, and the hamon is gunome-midare with nioi-guchi and kinsuji, culminating in a ko-maru boshi.
NihontoWatchmei · Keio (1865-1868) · nagasa 68.48cm · sori 1.39cm
Shinshinto · Settsu · around 1865-1868
Tōken Taikan top 95%
7 pieces on the market now
Shinshinto · Settsu
41 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Naonobu直信 | 1854-1860 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
If, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
![Katana - by Gassan Sadaharu - Mei: Nagakuchi Sadaharu made this in Naniwa [engraved] - Commissioned by Masuda-shi of Matsumoto Domain, Keio Gannen Kinoto-Ushi Kikumon](/_next/image?url=https%3A%2F%2Fitbhfhyptogxcjbjfzwx.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Flisting-images%2Fchoshuya%2FL35853%2F00.jpg&w=2560&q=90)
![Tanto - Hozon - by Gassan Sadaharu - Sold: Tanto Sadaharu (Kenryushi) - Shin-Shinto, with Hozon Token certificate [18.9cm, 6 sun 3 bu, with Umahari]](/_next/image?url=https%3A%2F%2Fitbhfhyptogxcjbjfzwx.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Flisting-images%2Ftoken-hasegawa%2FL640899%2F00.jpg&w=2560&q=90)
