This vintage Ulster US 2 fruit melon tester knife is from the 1940s or 1950s. The blade is made of stainless steel and has a plain edge with a blade range of 2.76 - 4 inches. The handle is made of plastic and is suitable for both left and right-handed users. This original Ulster knife is a collectible folding knife that can be used to test the ripeness of various fruits. Its ivory color and manual opening mechanism add to its vintage appeal. The blade type is specifically designed for fruit testing, making it a unique addition to any collector's arsenal.