Authentic Wenger Swiss Army Mountaineer Utility Knife. Dated 5/1/89 Extremely rare to find used, almost never still packaged!! The item "Authentic Wenger Swiss Army Mountaineer Utility Knife 5/1/1989 Unopened" is in sale since Wednesday, January 31, 2018. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Folding Knives\Modern Folding Knives\Factory Manufactured".The seller is "jathomme-0" and is located in Oakland, Oregon. This item can be shipped to United States.