The horn colour on the Taihei handles is random. 

Detailed Spec

Brand: Tetsujin 鉄人刃物
Smith: Toru Tamura 田村 徹
Producing Area: Kochi/ Japan
Profile: Kiritsuke Gyuto
Size: 210mm
Steel Type: Carbon Steel
Steel: Yasuki Blue (Aogami) #2, Soft Iron Clad
Handle: Taihei Makassar Ebony & Buffalo Horn Ferrule Octagonal
Total Length: 383mm
Edge Length: 230mm
Handle to Tip Length: 247mm
Blade Height: 51mm
Thickness: 3.10mm
Handle Length: 135mm
Weight: 211g
Hand Orientation: Ambidextrous
Sharpener: Naohito Myojin