Yahiko AS Kuro Tsuchime. These knives are made with top of the line, Aogami Super Steel and come with a nice kurouchi (black), tsuchime (hammered) finish along with upgraded sakura (cherry wood) octagonal handles.
Brand: Yahiko
Location: Tosa, Japan
Construction: San Mai, Hammer Forged
Cladding: Stainless
Edge Steel: AS (Aogami Super)
Edge: Even
Finish: Hammered/kurouchi
Handle: Cherry Octagonal
Ferrule: Black Pakkawood
Weight: 5.2oz /148g
Blade Length: 215mm
Overall Length: 370mm
Spine Thickness at Heel: 2mm
Blade Height at Heel: 45mm
HRC: 63+-