Italian playing cards Arabic numerals (for trumps, cups, and coins) or Roman numerals (for swords and batons). The face cards and trumps are reversible. Dal Negro's decks include two Jokers that aren't used for tarot games. Swiss 1JJ is a 78-card tarot set descended from the Tarot of Besançon, an offshoot of the Marseilles tarot, and is still used in pockets of Switzerland. Despite having Italian suits, the trumps are labelled in French or German. They are not reversible and the trumps and pip cards use Roman numeral indexing. They are used by the Romansh to play Troccas and by German Swiss to
Zener cards the experimenter picks up a card in a shuffled pack, observes the symbol, and records the answer of the person being tested, who would guess which of the five designs is on the card. The experimenter continues until all the cards in the pack are tested. Poor shuffling methods can make the order of cards in the deck easier to predict and the cards could have been inadvertently or intentionally marked and manipulated. In his experiments, J. B. Rhine first shuffled the cards by hand but later decided to use a machine for shuffling. In his book, "The New Apocrypha",