A Japanese katana signed Bushū-jū Fujiwara Kanenaga (武州住藤原兼永), measuring 60.7 cm in nagasa with a sori of 1.2 cm.

The smith Kanenaga is associated with the Shimohara school of Musashi Province, based around present-day Hachioji in western Tokyo. The Shimohara smiths were active during the late Muromachi period and continued their tradition into the Edo period, producing work for the samurai class and regional military houses. Kanenaga is recorded among the smiths active around the mid-16th century, approximately 1555–1570.

The blade features a striking wave-like midare hamon with a clearly defined nioi, giving the temper line a lively and pronounced appearance.

The sword is mounted in Type 98 guntō koshirae with a leather-covered scabbard, typical of field-service mounts. The remounting of traditionally forged blades into military fittings was common during the wartime period, reflecting continued functional use.