The Zig-Zag Deck

A deck of cards is placed into a black walnut box-like contraption. Two cards are then used as “blades”, to apparently penetrate sideways through the box and the deck, dividing it into three sections. The center section is then slide completely to one side. Even at extremely close range, and from any angle, the illusion seems impossible. The deck is then restored to its previous condition. Includes instructions. Very good condition.