Case 31950 three blade Medium Serpentine Stockman with Dark Red Bone handle (6318 CV) . This Case XX three blade Medium Serpentine Stockman features Dark Red Peach Seed Jig Bone Handles. Chrome Vanadium Clip, Sheepfoot and Spey Blades. 3 5/8" closed USA NOTE: This knife has Chrome Vanadium High Carbon Steel Blades. The Chrome Vanadium Steel is considered by many to be the superior steel in Case knives. It is not a stainless steel and will rust, tarnish or stain. Keep blade clean, dry and lightly oiled if you wish to try and keep the original factory finish on the blade.