This is an ubu, mumei katana attributed to Den Bingo Kai Mihara Masaoki. The blade features a chu suguba in konie with a bright habuchi, becoming wider with gunome and midare at the monouchi. It has tight itame hada packed with fine jinie and is in an acceptable older polish with a few surface scratches.
mumei · Kai Mihara · Taiei (1521-1528) · nagasa 66.97cm
















Yamato-den · Bingo
4 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Masamune正宗 | 1469-1487 | 0 |
| Masaoki正興 | 1521-1528 | 0 |
| Nagashige長重 | 1487-1489 | 0 |
| Kaneyasu兼安 | 1469-1487 | 0 |
| Takakane高兼 | 1504-1521 | 0 |
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.
Three day, no penalty, inspection on every item. Returns must be in the same condition as shipped. Actual costs will be charged on returned items. No restocking fee. If you did not like the item is a good enough reason for return.
This is an ubu, mumei katana attributed to Den Bingo Kai Mihara Masaoki. The blade features a chu suguba in konie with a bright habuchi, becoming wider with gunome and midare at the monouchi. It has tight itame hada packed with fine jinie and is in an acceptable older polish with a few surface scratches.
mumei · Kai Mihara · Taiei (1521-1528) · nagasa 66.97cm
















Yamato-den · Bingo
4 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Masamune正宗 | 1469-1487 | 0 |
| Masaoki正興 | 1521-1528 | 0 |
| Nagashige長重 | 1487-1489 | 0 |
| Kaneyasu兼安 | 1469-1487 | 0 |
| Takakane高兼 | 1504-1521 | 0 |
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.
Three day, no penalty, inspection on every item. Returns must be in the same condition as shipped. Actual costs will be charged on returned items. No restocking fee. If you did not like the item is a good enough reason for return.