This is a wakizashi by Gassan Kaneyasu, dating to the mid-Muromachi period (Bunmei era) from Dewa Province. The Gassan school, founded by Kiomaru, is known for its distinctive ayasugi-hada (wood grain pattern) combining large waves with mokume-hada. This rare hira-zukuri example may have been made for a mountain ascetic, showcasing the traditional forging methods linked to the legendary ancient smith Kiomaru.
NihontoWatchBETA
Wakimono · Dewa
49 pieces on the market now
Mount Gassan rises among the Dewa Sanzan, the three sacred peaks of northern Japan bound to the mountain asceticism of Shugendō, and the swordsmiths who took the mountain's name worked in its shadow in Ōshū, Dewa Province. The setsumei record that smiths signing "Gassan" are noted in the Kanchiin-bon Meizukushi as early as the Heian period, and the lineage's oldest surviving signed blade is a tachi simply signed Gassan, kept at the Gassan Shrine and judged to date from the late Nanbokuchō to early Muromachi period. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Naonori直則 | 1830-1844 | 0 |
| Toshiyasu俊安 | 1504-1521 | 0 |
| Nagahisa長久 | 1334-1338 | 0 |
| Kiyoyasu清安 | 1532-1555 | 0 |
| Tomosada友定 | 1532-1555 | 0 |
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 Gassan Kaneyasu, dating to the mid-Muromachi period (Bunmei era) from Dewa Province. The Gassan school, founded by Kiomaru, is known for its distinctive ayasugi-hada (wood grain pattern) combining large waves with mokume-hada. This rare hira-zukuri example may have been made for a mountain ascetic, showcasing the traditional forging methods linked to the legendary ancient smith Kiomaru.
NihontoWatchBETAWakimono · Dewa
49 pieces on the market now
Mount Gassan rises among the Dewa Sanzan, the three sacred peaks of northern Japan bound to the mountain asceticism of Shugendō, and the swordsmiths who took the mountain's name worked in its shadow in Ōshū, Dewa Province. The setsumei record that smiths signing "Gassan" are noted in the Kanchiin-bon Meizukushi as early as the Heian period, and the lineage's oldest surviving signed blade is a tachi simply signed Gassan, kept at the Gassan Shrine and judged to date from the late Nanbokuchō to early Muromachi period. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Naonori直則 | 1830-1844 | 0 |
| Toshiyasu俊安 | 1504-1521 | 0 |
| Nagahisa長久 | 1334-1338 | 0 |
| Kiyoyasu清安 | 1532-1555 | 0 |
| Tomosada友定 | 1532-1555 | 0 |
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%2F02.jpg&w=2560&q=90)
