Made for Hatsukokuro in the Tosa region of Shikoku Island in Japan with an iron clad aogami 2 carbon steel core with a wedge handle. These have the black kurouchi finish from the forge left on and are ground with a somewhat basic grind on the wide bevels.

Hand forged knives from the Tosa area of Shikoku Island, Japan's least populated island with a long history of smithing. Shikoku's thick forests, agriculture and fisheries have led to a local style of smithing that is characterized by rustic free forged knives and tools. Many Tosa knives are ryoba style; forged and ground symmetrically and are suitable for both right and left hand users.