The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
This is a wakizashi by Yusuishi Sadayoshi, born in Meiji 41. He studied under Gassan Sadakatsu and was granted a character from his master's name, signing as Sadayoshi. He established his forge near Mishima Shrine, known for its abundant spring water, and also used the art name 'Yusuishin'. He dedicated his life to crafting swords, researching old masterworks like Soshu Masamune, Sadamune, and Yamato Hosho Sadayoshi, and innovating steel-making techniques with wazuku and old iron, similar to masters like Sumitani Masamine, Amada Akitsugu, and Miyairi Yukihira.
NihontoWatchmei · Showa (1926-1989)
Shinshinto · Shizuoka · around 1926-1989
1 piece on the market now
Shinshinto · Settsu
37 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadakazu貞一 | 1864-1865 | 2 |
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Shōwa to the present: destruction and revival
The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
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 is a wakizashi by Yusuishi Sadayoshi, born in Meiji 41. He studied under Gassan Sadakatsu and was granted a character from his master's name, signing as Sadayoshi. He established his forge near Mishima Shrine, known for its abundant spring water, and also used the art name 'Yusuishin'. He dedicated his life to crafting swords, researching old masterworks like Soshu Masamune, Sadamune, and Yamato Hosho Sadayoshi, and innovating steel-making techniques with wazuku and old iron, similar to masters like Sumitani Masamine, Amada Akitsugu, and Miyairi Yukihira.
NihontoWatchmei · Showa (1926-1989)
Shinshinto · Shizuoka · around 1926-1989
1 piece on the market now
Shinshinto · Settsu
37 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadakazu貞一 | 1864-1865 | 2 |
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Shōwa to the present: destruction and revival
The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
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.
![Tanto - Hozon - by Gassan Sadayoshi - Fuyou Asahi, Ansei Hebidoshi 8gatsuhi (Attributed to Gassan Sadayoshi) [NBTHK Hozon]](/_next/image?url=https%3A%2F%2Fitbhfhyptogxcjbjfzwx.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Flisting-images%2Ftoyuukai%2FL519985%2F04.jpg&w=2560&q=90)
