CA0163 (6254 CV) 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 XX Large Trapper with Amber Bone handles. High Carbon Chrome Vanadium CV Steel Clip and Spey blades. 4 1/8" closed. 4.0 oz USA. This knife has Chrome Vanadium (CV) steel blades. CV is an excellent high carbon knife steel, but is not stainless. Keep the blades clean and lightly oiled to maintain the finish.