A YAMATO-DEN TACHI [SWORD] ATTRIBUTED TO THE SENJUIN SCHOOL, KAMAKURA PERIOD (14th CENTURY)

Sugata [configuration]: a long graceful tachi from the later Kamakura period, the sugata is shinogi-zukuri, iori-mune with a rather high koshi-zori, almost tori-zori, there is fumbari ending in a ko-kissaki
Kitae [forging pattern]: itame-gokoro in places, becoming masame-hada throughout, some ji-nie
Hamon [tempering pattern]: cu-suguha with occasional slight midare, in ko-nie-deki
Boshi [tip]: narrow boshi with a short kaeri
Nakago [tang]: ubu with a single mekugi-ana, yoko-yasurime and kuri-jiri, mumei

In shirasaya [plain wood scabbard]

Nagasa [length from kissaki to machi]: 85.0 cm., 33 1/2 in.
Saki-haba [width at the yokote]: 2.1 cm., 5/8 in.
Moto-haba [width at the machi]: 3.3 cm., 1 1/8 in.