Case XX three blade Medium Serpentine Stockman (6318 SS) with Smooth Caribbean Blue Bone Handles. There is nothing like the feel of a Case knife in your hand. Durable, strong and beautifully designed, our hand-crafted Case knives are in a class of their own, which is one reason why they've been passed down from generation to generation, and sought after by collectors from all over the world. For an authentic, American-made work of art, nothing compares to a Case pocket knife, or hunting knife. W.R. Case & Sons Cutlery Co., hand-crafted knives since 1889. Case three blade Medium Serpenting Stockman with Smooth Caribbean Blue BoneHandles. Stainless Clip, Sheepfoot and Spey Blades. Inlay Federal Shield. 3 5/8" closed. USA