Air-Pressure or Revolution Turnover is a classic way to reveal a chosen card.
You throw the deck on the table and the chosen card which is on top unbeknown to the spectators turns face-up thanks to air-pressure.
The first description of this sleight appeared in "The Boy's Own Book" by William Clarke (1829).
Le Testament de Jérôme Sharp (1793) has a trick where you control four selections to the top and basically do the air pressure turnover four times. The difference is you don't drop the pack, you jog the card over with the thumb and swipe your hand down so that the card flies off and lands face up on the table.
Variations and publications
- Turn-over, The Boy's Own Book page 396 (1829)
- Modern Magic by Professor Hoffmann, p. 45 Various Modes of Disclosing a Discovered Card - Third Method (1876)
- Edwin Sachs' Sleight-of-Hand, p. 101 To Cause a Card to Show itself on the Top of the Pack (1877)
- August Roterberg's New Era Card Tricks (1897)
- S. W. Erdnase's The Expert at the Card Table (The Revolution page 108 dover edition) (1902).
- Hofzinser's Card Conjuring (1910).
- Stanyon's Magic Vol. 12, p. 94 (1912) The Revolution
- The Book of Magic (Walter B. Gibson, 1927) p. 142 Card Discoveries (4)
- 84 Card Tricks (Hugh Morris, 1936) p. 32 The Stubborn Card
- Basic Card Technique (Anthony Norman, 1948) p. 49 Aerial Turnover
- Card Conjuring (Wilfrid Jonson, 1950) p. 34 Think of A Number