A Petit Etteilla deck in English is a 32 card deck and comes in a custom designed tin.
The Petit Etteilla is a fortune telling deck by the French mystic Jean-Baptiste Alliette. He reversed his name to ‘Etteilla’ and published his book in 1770 explaining how to use cards for fortune telling and contained his method for reading the ‘Petit Etteilla’ cards.
The Petit Etteilla is said to be the deck that Mlle Le Normand used, predating Lenormand cards. This system of cartomancy using card pairing and card counting also influenced esoteric tarot spreads of the Golden Dawn such as the Opening of the Key.