Made and bought in 1981 this is the Case XX 6375 Stainless Steel, Amber Jigged Bone, Large Stockman is a collectible folding knife made in the United States. This pocketknife features 3 different stainless steel blades (Clip, Spey, Sheepfoot) with a manual opening mechanism.The handle is made of amber jigged bone, adding to its distinctive look. With 3 blades and a slipjoint lock type, this original Case XX knife is a sought-after piece for collectors of modern folding knives.