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.
Testament de Jérôme Sharp (1785) 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, page 396 in The Boy's Own Book (1829)
- Various Modes of Disclosing a Discovered Card - Third Method, page 45 in Modern Magic by Professor Hoffmann (1876)
- To Cause a Card to Show itself on the Top of the Pack, page 101 in Sleight of Hand By Edwin Sachs (1877)
- The Revolution, page 43 in New Era Card Tricks By August Roterberg (1897)
- The Revolution, page 108 in The Expert at the Card Table By S. W. Erdnase (Dover edition) (1902).
- Explained in The Metamorphosis of the Flying Card in Hofzinser's Card Conjuring (1910).
- The Revolution, page 94 in Stanyon's Magic, Vol. 12, no. 12, September, (1912)
- Card Discoveries (4), page 142 in The Book of Secrets: Miracles Ancient and Modern By Walter Gibson (1927)
- The Stubborn Card, page 32 in 84 Card Tricks By Hugh Morris (1936)
- Aerial Turnover, page 49 in Basic Card Technique By Anthony Norman (1948)
- Think of A Number, page 34 in Conjuring By Wilfrid Jonson (1950)
- Quinella, page 874 in The Phoenix, no. 219, December 29, 1950 by Harry Lorayne, reprinted in Close-Up Card Magic (1962)
- A "Sure-Fire" Turnover, page 86 in The Coin and Card Magic of Bobby Bernard (1980)