This Sujihiki has a lovely custom handle by Isaiah Schroeder. Katsushige Anryu started apprenticing as a knife maker under his father, Katsutoshi Anryu, after graduating high school in 1959. He is a fourth generation knife maker and has been working as a blacksmith for well over 50 years. These knives that we are selling under his name are great examples of his work. These knives have a unique hand hammered finish with stainless clad and Aogami #2 (blue paper 2) steel core on the edge. HRC on these knives is approximately 62.