This is a katana attributed to the O-Sa Ichimon (Sa school) from the Nanbokucho period. The blade is o-suriage mumei, meaning it has been significantly shortened and is unsigned. The Sa school was active in Chikuzen Province and is known for its bright nie-deki ji-ha, often compared to Soshu Masamune.
NihontoWatchsuriage-mumei · Sa · Nanbokucho
Soshu-den · Chikuzen
Sōshū in the Nanbokuchō period
Kamakura fell in 1333, but the school’s greatest era followed: Sadamune working at his teacher’s standard, Hiromitsu and Akihiro spilling hitatsura over the whole blade, and the Sōshū manner spreading with the armies until it became, for a time, a national style.
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.
Price on request
This is a katana attributed to the O-Sa Ichimon (Sa school) from the Nanbokucho period. The blade is o-suriage mumei, meaning it has been significantly shortened and is unsigned. The Sa school was active in Chikuzen Province and is known for its bright nie-deki ji-ha, often compared to Soshu Masamune.
NihontoWatchsuriage-mumei · Sa · Nanbokucho
Soshu-den · Chikuzen
Sōshū in the Nanbokuchō period
Kamakura fell in 1333, but the school’s greatest era followed: Sadamune working at his teacher’s standard, Hiromitsu and Akihiro spilling hitatsura over the whole blade, and the Sōshū manner spreading with the armies until it became, for a time, a national style.
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.
Price on request
