W.R. Case & Son's Cutlery Co. has been producing Quality Pocket Knives for over a century. Located in Bradford, Pennsylvania, Case XX knives are known for their collectible qualities. The many different materials, styles, and blade stamps are used to date vintage Case Knives. Case Knives continues to produce quality work knives, hunting knives, fishing knives, as well as collector knives. The XX, in Case XX, refers to the early process that Case used to test its knives. The knives were tested not once, but twice. The X's were etched on the blade pans. All Case XX Knives are handcrafted in the U.S.A.