The Case XX 1981 Banana Trapper 6151 Knife is a vintage folding pocketknife with a 2.76-4 inch stainless steel blade and a brown bone handle. This collectors club item from the United States features a manual clip point blade, lockback mechanism, and is classified as ambidextrous for use by right or left-hand users. With its original production and classic design, this Case XX knife is a sought-after collectible for knife enthusiasts and collectors alike.