Rockstead factory custom knives (Sakai, Japan) are known to be among the finest in the world https://www.rockstead.jp/making

This knife original model is DON-ZDP. However, this model has big difference in two parts. The blade shape is "Tanto-Honzukuri", a "Tanto-convex" blade shape. As you know, we are making to the "Tanto" blade shape with 智 CHI model. But this blade shape is "Tanto-Shinogizukuri". That means straight grind. However, we were completed "Tanto-Honzukuri" with ROCKSTEAD special technologies. The only a few knife makers who make this kind of blade shape but we have never seen "Tanto-Honzukuri" with a mirror polished surface.
The other point is the handle design. This handle motif is traditional Japanese Tanto-sword (Wakizashi). Handle materials are ebony with silver plate inlays and decorated KOI menuki. It is made by silver casting. Comes in a wooden presentation box with papers.

DON T-ZDP

Sheath

Official: https://www.rockstead.jp/collection/detail.html?id=360&category=sheath