This is a katana attributed to Sa Hiroyuki from the Nanbokucho period. The blade features a notare and ko-gunome hamon with midarekomi boshi. It comes with a koshirae featuring a black lacquer saya and antique fittings, and is certified as Tokubetsu Hozon Token by the NBTHK.
NihontoWatchBETAmumei · Sa · Nanbokucho · nagasa 69.8cm · sori 1.4cm
Soshu-den · Chikuzen
12 pieces on the market now
In Chikuzen Province, on the northern coast of Kyushu, the Sa school (左, the Samonji line) took shape in the early Nanbokucho period as a deliberate break with the Kyushu work that came before it. Its founder, the smith who cut the single character 左 on his tang, is read in the published sources as Saemon Saburo, commonly called O-Sa or Samonji; he is placed as the grandson of Sairen and son of Jitsua, the old Chikuzen line whose steel, in the words the NBTHK restates blade after blade, ran sunken and rustic in a restrained suguha inherited from Yamato. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Sa左 | 1334-1338 | 74 |
| Yasuyoshi安吉 | 1346-1370 | 46 |
| Yoshisada吉貞 | 1345-1359 | 48 |
| Kunihiro國弘 | 1346-1370 | 51 |
| Hiroyasu弘安 | 1346-1370 | 24 |
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).
This is a katana attributed to Sa Hiroyuki from the Nanbokucho period. The blade features a notare and ko-gunome hamon with midarekomi boshi. It comes with a koshirae featuring a black lacquer saya and antique fittings, and is certified as Tokubetsu Hozon Token by the NBTHK.
NihontoWatchBETAmumei · Sa · Nanbokucho · nagasa 69.8cm · sori 1.4cm
Soshu-den · Chikuzen
12 pieces on the market now
In Chikuzen Province, on the northern coast of Kyushu, the Sa school (左, the Samonji line) took shape in the early Nanbokucho period as a deliberate break with the Kyushu work that came before it. Its founder, the smith who cut the single character 左 on his tang, is read in the published sources as Saemon Saburo, commonly called O-Sa or Samonji; he is placed as the grandson of Sairen and son of Jitsua, the old Chikuzen line whose steel, in the words the NBTHK restates blade after blade, ran sunken and rustic in a restrained suguha inherited from Yamato. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Sa左 | 1334-1338 | 74 |
| Yasuyoshi安吉 | 1346-1370 | 46 |
| Yoshisada吉貞 | 1345-1359 | 48 |
| Kunihiro國弘 | 1346-1370 | 51 |
| Hiroyasu弘安 | 1346-1370 | 24 |
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).
