Antique Nihonto Katana Signed by Munetoshi NBTHK TOKUBETSU HOZON TOKEN Certificate

Regarding the swordsmith 宗敏, his name does not appear in any records, and according to the 日本美術刀剣保存協会, a certificate was issued recognizing him as an undocumented swordsmith. He may be related to 固山宗次.
The blade has a shallow curve with a noticeable difference in width between the base and the tip, and a relatively long tang. The center of gravity is near the handle, providing good balance, suggesting a design focused on cutting power in two-handed swordsmanship. The forging pattern consists mainly of straight grain (柾目) with some burl grain (杢), showing fine, well-forged steel. The hamon (刃文) is a middle straight temper line (中直刃調) with slight variations in width, featuring fine sand-like patterns (砂流) within the blade, and intricate activities intertwined with the forging pattern, including both large and small kinsuji (金筋). The boshi (鋩子) is straight with a rounded tip. This is a rare piece not documented in existing records, making it a valuable addition to any collection.

Bare blade weight: 782 grams.