拍品专文
Tadayoshi IV (1661-1747) was the son-in-law of the third generation Mutsu no Kami Tadayoshi. The work is classic Hizen style with the finest konuka (rice bran) hada, and hamon of bright, even ko-nie. The faint long lines of nie on the hiraji are sometimes found on other work by this smith. The horimono is in Hizen style and characteristically centered on the shinogi, and as with many Hizen swords, was possibly carved by a specialist other than the smith.