Learn more about W.R. Case and Sons Be prepared for any task with a W.R. Case and Sons Amber Bone CV Folding Knife in your pocket. Classic traditional folders known for their quality and craftsmanship, theyre often handed down from one generation to the next. Made in USA. Available: Canoe Spear and pen blades. Spear blade length: 2.313. Pen blade length: 1.75. OAL: 6.25. Closed length: 3.625. Wt: 2.9 oz. Large Stockman Clip-point, sheepfoot and spey blades. Clip-point blade length: 2.875. Sheepfoot blade length: 1.875. Spey blade length: 1.875. OAL:7.625. Closed length: 4.25. Wt: 4.1 oz. Medium Stockman Clip-point, sheepfoot and spey blades. Clip-point blade length: 2.375. Sheepfoot blade length: