This is a katana made by Kotani Yasunori, who was a Yasukuni Shrine swordsmith. He was born in 1909 and became a Yasukuni Shrine swordsmith in 1935, known for his skills and making swords for high-level military figures. The sword is in good polish and is on consignment.
signed · Showa (1926-1989) · nagasa 67.15cm · sori 1.2cm





Hiroshima · around 1926-1989
1 piece on the market now
The NTHK’s principal certificate, issued for a blade of considerable quality. It confirms a genuine signature, or, for an unsigned (mumei) work, records the judges’ attribution to a smith or school. The paper carries a detailed worksheet with a numerical point score.
The NTHK (Nihon Tōken Hozon Kai, the Society for the Preservation of the Japanese Sword) is the oldest of Japan’s sword-appraisal bodies, founded in 1910, decades before the NBTHK. After the death of its long-serving head it divided into two successor societies, the NTHK and the NTHK-NPO, both of which continue to hold shinsa. NTHK certificates are known for a detailed worksheet that records a numerical point score alongside the judges’ written opinion, and the society is especially respected for its attribution of unsigned (mumei) work.
We offer a 48 hour inspection period for all Antique items shipped within the United States only. If the item is not to your satisfaction, we will gladly refund your money less any shipping and handling fees. All sales are final after the 48 hour inspection period. Please note that all discounted items are a final sale and not returnable.
This is a katana made by Kotani Yasunori, who was a Yasukuni Shrine swordsmith. He was born in 1909 and became a Yasukuni Shrine swordsmith in 1935, known for his skills and making swords for high-level military figures. The sword is in good polish and is on consignment.
signed · Showa (1926-1989) · nagasa 67.15cm · sori 1.2cm





Hiroshima · around 1926-1989
1 piece on the market now
The NTHK’s principal certificate, issued for a blade of considerable quality. It confirms a genuine signature, or, for an unsigned (mumei) work, records the judges’ attribution to a smith or school. The paper carries a detailed worksheet with a numerical point score.
The NTHK (Nihon Tōken Hozon Kai, the Society for the Preservation of the Japanese Sword) is the oldest of Japan’s sword-appraisal bodies, founded in 1910, decades before the NBTHK. After the death of its long-serving head it divided into two successor societies, the NTHK and the NTHK-NPO, both of which continue to hold shinsa. NTHK certificates are known for a detailed worksheet that records a numerical point score alongside the judges’ written opinion, and the society is especially respected for its attribution of unsigned (mumei) work.
We offer a 48 hour inspection period for all Antique items shipped within the United States only. If the item is not to your satisfaction, we will gladly refund your money less any shipping and handling fees. All sales are final after the 48 hour inspection period. Please note that all discounted items are a final sale and not returnable.