Nihonto Katana "Echizen Bonryū" with double NBTHK certificate

Description

ITEM DESCRIPTION:

Comes with kimono or cotton bag. Comes with certificate of supein Nihonto. Comes with copy of Tokosusho. Comes with NBTHK Tokobetsu kicho Certificate for blade and koshirae.

Documentation

NBTHK — Blade
Classification: Tokubetsu Kichō Tōken
Status: Mumei, Echizen Bonryū
Issuing body: Nihon Bijutsu Tōken Hozon Kyōkai

NBTHK — Koshirae

Classification: Tokubetsu Kichō
Object: Koshirae

Literal description per certificate:

• Saya: black kuro-roiro lacquer

• Tsuba: round iron (maru-gata)

Date: February 20, 1967 (Shōwa 42)

Issuing body: Nihon Bijutsu Tōken Hozon Kyōkai

Japanese Registration — Torokusho

Official Japanese prefectural registration certificate for an antique sword.
Legal administrative document with registration number and official seals, confirming the blade’s lawful registration as a nihontō.
The torokusho does not provide smith attribution or school attribution beyond registration.

School

Echizen Bonryū

An Edo-period school documented in Echizen Province.
The attribution is explicitly stated on the NBTHK Tokubetsu Kichō certificate of the blade.

Period

Middle Edo period (Circa 17th-18th)

Technical summary

Edo-period katana with a mumei blade attributed by NBTHK to the Echizen Bonryū school, certified as Tokubetsu Kichō Tōken.
Complete koshirae independently certified as Tokubetsu Kichō, consisting of a black kuro-roiro lacquered saya and a round iron tsuba, exactly as stated in the NBTHK documentation.
Blade officially registered in Japan with a prefectural torokusho.