Case xx 523-5

The Case XX 523-5 is a classic vintage pocket knife that showcases the craftsmanship and collectibility that W.R. Case & Sons is known for. Produced during the highly desirable “XX” era (1940–1964), this model carries strong appeal for both users and serious collectors. The “523-5” pattern typically denotes a 2-blade jack knife configuration, featuring a clip point master blade paired with a secondary pen blade—making it a versatile everyday carry for light utility tasks. The blades are crafted from Case’s proven carbon steel, known for taking a razor-sharp edge and developing a rich patina over time. Built on a compact frame (approximately 3 3/8" closed), the knife offers excellent pocketability while still providing functional blade length. The handle scales are traditionally jigged bone, giving it that unmistakable vintage Case look and solid in-hand feel. Nickel silver bolsters and brass liners round out the construction, adding durability and classic styling. Selling Points: Genuine Case XX era knife (1940–1964) – highly collectible Pattern 523-5 – versatile 2-blade jack (clip + pen) Carbon steel blades – excellent edge and patina character Jigged bone handles – classic Case appeal Made in USA – heritage craftsmanship Strong collector demand and rising value Whether you’re adding to a Case collection or looking for a piece of American cutlery history you can still carry, the 523-5 is a solid, investment-worthy choice.