How does a tachi differ from a katana in construction and display?
Updated Mar 2026
The tachi predates the katana by roughly three centuries and differs in several measurable ways. Tachi blades are typically longer — often 70 cm or more — and carry a deeper, more pronounced curvature (sori). Historically, the tachi was worn edge-down suspended from the hip by a cord, while the katana was thrust through the belt edge-up. This distinction affects the mei, or maker's signature: on a tachi, the mei appears on the side of the tang that faces outward when worn edge-down. For display purposes, a tachi is traditionally presented on a horizontal stand with the edge facing downward, opposite the katana convention. Collectors who display both forms together often use tiered stands to make the orientation difference immediately visible and historically legible.