A ryo-shinogi (4 sided) yari mounted as a tanto signed Chikushu Ju Sa Yasuhide Saku and dated Kansei 10 (1798). The blade features chu suguba in ko-nie with subtle activity and a hada that is most likely masame with elements of ko-itame. It is mounted with a silver foiled copper habaki, horn fuchi kashira, and saya lacquered to look like cherry bark.
NihontoWatchBETA
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 |
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.
3-day return window from receipt.
A ryo-shinogi (4 sided) yari mounted as a tanto signed Chikushu Ju Sa Yasuhide Saku and dated Kansei 10 (1798). The blade features chu suguba in ko-nie with subtle activity and a hada that is most likely masame with elements of ko-itame. It is mounted with a silver foiled copper habaki, horn fuchi kashira, and saya lacquered to look like cherry bark.
NihontoWatchBETASoshu-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 |
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.
3-day return window from receipt.
