Katana by Mutsu no Kami Tadayoshi, third generation of the Hizen school and son of Ōmi Daijō Tadahiro. According to the original seller, he received the title Mutsu Daijō in Manji 3 (1660) and Mutsu no Kami in Kanbun 1 (1661), and died in Jōkyō 3 (1686), before his father. The blade is shinogi-zukuri with iori-mune and chū-kissaki, 71.4 cm in nagasa with 2.2 cm of sori, wide and with a thick kasane. The original seller describes a very tight ko-itame with abundant ji-nie and fine chikei, the konuka-hada of Hizen, and a suguha-notare hamon with deep, bright nioi that widens towards the monouchi, with ko-ashi, yō and some kinsuji; the bōshi is straight with a ko-maru turnback. The photographs show the ubu tang, with kurijiri tip and two mekugi-ana, signed in tachi-mei 肥前国住陸奥守忠吉 (Hizen no Kuni-jū Mutsu no Kami Tadayoshi). It is undated: from the style of the signature, the original seller places it towards the end of Enpō (c. 1680). Designated Jūyō Tōken by the NBTHK at the 30th session (1983); the zufu text stresses its imposing construction and bright suguha. It comes with a double copper habaki with gold foil and, according to the original seller, in shirasaya; there is no koshirae.