
According to general characteristics:
Di-69MP, in covers of stainless Damascus, blades, after TCO, and cryo treatment. The hardness of the center is ~64HRC.
And now about the dimensions of the blades:
1) 103x27x4.1mm, rise 0.3mm, shank - 105mm.
2) 121x28.9x3.7mm, rise 0.3mm, shank - 98mm
3) 137x30.3x4.1mm, rise 0.3mm, shank - 100mm.
4) 143x30.3x4mm, rise 0.3mm, shank - 102mm.