This is a daisho (matched katana and wakizashi set), both mumei (unsigned). The katana is attributed to the Suesa/Osa school of Chikuzen province, and the wakizashi to the Yamatoshizu school of Yamato province, both dating to the Nanbokucho period. Both blades come with NBTHK Tokubetsu Hozon papers and are mounted in koshirae and shirasaya.
NihontoWatchmumei · Nanbokucho · nagasa 77.3cm · sori 2.1cm
Soshu-den · Chikuzen
16 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 | 73 |
| Yasuyoshi安吉 | 1346-1370 | 45 |
| Kunihiro國弘 | 1346-1370 | 48 |
| Yoshisada吉貞 | 1345-1359 | 48 |
| 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 sitePlease contact us by phone within 3 days of the item's arrival and ship it back the next day. The postage and security service fees are the customer's responsibility.
This is a daisho (matched katana and wakizashi set), both mumei (unsigned). The katana is attributed to the Suesa/Osa school of Chikuzen province, and the wakizashi to the Yamatoshizu school of Yamato province, both dating to the Nanbokucho period. Both blades come with NBTHK Tokubetsu Hozon papers and are mounted in koshirae and shirasaya.
NihontoWatchmumei · Nanbokucho · nagasa 77.3cm · sori 2.1cm
Soshu-den · Chikuzen
16 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 | 73 |
| Yasuyoshi安吉 | 1346-1370 | 45 |
| Kunihiro國弘 | 1346-1370 | 48 |
| Yoshisada吉貞 | 1345-1359 | 48 |
| 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 sitePlease contact us by phone within 3 days of the item's arrival and ship it back the next day. The postage and security service fees are the customer's responsibility.
