Two courts, sixty years of war, and the most dramatic silhouettes in the sword’s history: broad blades, extended points, true ōdachi later cut down into the majestic katana collectors prize. The Sōshū manner was the style of the age.
This katana is attributed to Bizen Masamitsu from the Nanbokucho Era. The blade features a shinogi-zukuri sugata, i tame jihada with mokume, and a ko-notare hamon with ko-gunome. It is mounted in a shirasaya with a sayagaki attributing the blade to Bizen Osafune Masamitsu.
mumei · Osafune · Nanbokucho · nagasa 69.4cm · sori 2cm
























The Nanbokuchō period (1333 to 1392)
Two courts, sixty years of war, and the most dramatic silhouettes in the sword’s history: broad blades, extended points, true ōdachi later cut down into the majestic katana collectors prize. The Sōshū manner was the style of the age.
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.
30-day money-back guarantee from receipt; items must be unused, complete, in original packaging. Sale items Final Sale. Antique swords non-returnable (Japanese export law). Damage reported within 72 hours. Customer pays return shipping unless seller error/defect. Refunds within 14 days of inspection.
This katana is attributed to Bizen Masamitsu from the Nanbokucho Era. The blade features a shinogi-zukuri sugata, i tame jihada with mokume, and a ko-notare hamon with ko-gunome. It is mounted in a shirasaya with a sayagaki attributing the blade to Bizen Osafune Masamitsu.
mumei · Osafune · Nanbokucho · nagasa 69.4cm · sori 2cm
























The Nanbokuchō period (1333 to 1392)
Two courts, sixty years of war, and the most dramatic silhouettes in the sword’s history: broad blades, extended points, true ōdachi later cut down into the majestic katana collectors prize. The Sōshū manner was the style of the age.
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.
30-day money-back guarantee from receipt; items must be unused, complete, in original packaging. Sale items Final Sale. Antique swords non-returnable (Japanese export law). Damage reported within 72 hours. Customer pays return shipping unless seller error/defect. Refunds within 14 days of inspection.