Kunimune (国宗), 1st gen., Shōgen (正元, 1259-1260), Bizen – „Kunimune“ (国宗), called „Bizen-Saburō“ (備前三郎), he derived from the line of Bizen Naomune (直宗) and was the third son of Kunizane (国真). San'indo (山陰道), saijō-saku.
Designated as Jūyō Token at the 52nd jūyō-shinsa held on the 12th of October 2006.
Nagasa: 69.7cm (2尺3寸), sori: 2.2cm (7分半), motohaba: 2.7cm, sakihaba: 1.75cm
This sword was polished by Hon'ami Kōshū (本阿弥光洲).