Tenyo Magic's Mystery Blade! A spectator selects and remembers a card from a miniature-sized deck. The card is replaced and the entire deck is inserted into a card case. The case is placed into a frame, a metal blade is pushed into the hole, and the blade penetrates the entire deck of cards! When the cards are removed for examination, they appear undamaged, except for one card which has a cut in it; the spectator's selected card!
Tenyo Magic’s Mystery Blade