Only mark is the patent as pictured. Funny folder style opening and closing. Bit of tip missing and tiny chip on scale bottom pin as pictured. The item "Vintage Antique Stag Funny Folder Locking Dirk Dagger Fighting Pocket Knife" is in sale since Sunday, July 25, 2021. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Folding Knives\Vintage Folding Knives\Factory Manufactured". The seller is "kristtag_0" and is located in Oxford, Maine. This item can be shipped to United States.