Wakizashi – Attributed to Ishihara Kunitsugu (石原國次)
Period: Early Edo period, circa 1642 (Kanei 19)
School/Tradition: Kanefusa lineage, Bushū (Musashi Province), in the Yamato-den tradition
Signature: Mumei (unsigned)
Classification: Certified as Hozon Tōken (保存刀剣) by the NBTHK – deemed worthy of preservation
Registration: Japanese sword registration number Tokyo 3033430
Issued by: Nihon Bijutsu Tōken Hozon Kyōkai (NBTHK)
Date of Certification: December 15, 2023 (Reiwa 5)