Magic Trick: Pricked Cards

An excellent method for detecting given cards is to have them pricked in the corners, very nearly through, with a needle. The hole, or, more properly speaking, the indentation, should be made on the back of the card, so that the face presents a little mound to the touch. The card should be marked in each corner, so that it will not matter which end of it comes to hand first. When it is desired to mark more than one card in the same pack by this method, one card should have one hole in each corner, another card two holes, another card three holes in a triangular form, another card a line of holes along each end, and so on. It will, however, be seldom necessary to mark many. Card cheating is to this day often practised by this means, cards of value of a certain suit being detected by the dealer as he deals them out.

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