Antique Nihonto - Katana in Shirasaya with Koshirae, late Kamakura to Nanbokucho (650+ years old) - Unsigned, NBTHK Hozon Attributed to Ko Uda

This blade was forged by a smith from the Uda school by NBTHK, which authenticated this blade. When attributed to the Ko (old) Uda school, it is from the Kamakura-Nanbokucho period (Approx. 1299 – 1393).  The tsuba and fuchikashira are likely Edo period. Uda is a prestigious school that flourished during the Nanbokuchoto-mid Muromachi period(approx. 1334-1491). It was founded by Kunimitsu(国光) in the late Kamakura period. The school was located in Etchu province in modern-day Toyama prefecture today. Kunimitsu was originally from Yamato Uda Gun(大和宇多郡), located in Nara prefecture but moved to Etchu in the late Kamakura period(1299-1333) with his apprentices including Kunifusa(国房), and Kunimune(国宗). Uda school was famous for producing practically designed blades, which were desirable during Nanbokucho- Muromachi period. Among other schools in the Hokuriku region (the northwestern part of Honshu), Uda school was the most prominent school. When the Uda school flourished in the Nanbokucho pe