Conjuring Credits

The Origins of Wonder

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Sandwich Effect

Likely the earliest description of a sandwich effect is in Richard Neve's The merry companion: or, delights for the ingenious (1716; see “To make any one blow a card in between two cards”). An early modern example of this effect (perhaps the earliest) is Louis F. Christianer's “Obedient Card” in The Magic Wand, Jan. 1917, p. 78.

There was also a variant in which the two reversed sandwich cards appear by surprise, surrounding the selection. Larsen and Wright had one of these in their L. W. Card Mysteries. Jack McMillen and Judson Cole published another method for the L. W. effect, titled “A New Reverse Location” in Take a Card, c. 1929-30, p. 8.