Vintage MAD Magazine "Alfred E. Neuman's 3-D Glasses" Gimmick

Original vintage US MAD Magazine promotional gimmick: "Alfred E. Neuman's Special Non-Optical 3-D Glasses". This was distributed as a separate standalone item or giveaway, not as a magazine insert. The item is in excellent, unused condition. It remains completely flat, unpunched, and features no folds or creases. The red print on the light paper strip is clean and fully legible. A rare piece of standalone MAD merchandise, ideal for completing a specialized ephemera collection.