Via Paul Martin:
Tachi (Long Sword) by Saemon-no-jo Suketsugu; Inscription: "Resident of Bizen Province ◯◯ Saemon-no-jo Suketsugu" (Gold-inlaid inscription: "Sode no Yuki" [Snow on the Sleeve]); Dated: Second month, Enkei 3 (1310).
Yoshioka Ichimonji School
Juyo Token (Important Sword)
Chido Museum Collection
Swordsmith Suketsugu, was from the Yoshioka Ichimonji school of Bizen Province during the late Kamakura period. The gold-inlaid inscription "Sode no Yuki" (Snow on the Sleeve) alludes to the sword's extreme sharpness—implying it would slice through something as delicate as snow resting on a sleeve. The black-lacquered scabbard bears a gold-lettered inscription detailing the sword's provenance: "On the 20th day of the 5th month, Tensho 3 (1575), at the hour of the Rat (approx. 11 PM–1 AM): Okudaira Kihachiro Nobumitsu of Sanshu (Mikawa Province) acquired this sword when Takeda Hyogo-no-kami Nobuzane fell in battle”. According to this record, Okudaira Nobumitsu obtained the tachi following the death of Takeda Hyogo-no-kami Nobuzane at the Battle of Nagashino in 1575.