Joker (playing card) 6 Jokers (3 different pairs) in a 52-card French deck. German Rummy uses 2 packs of French playing cards, with 3 Jokers per pack. The Joker is often compared to "(the) Fool" in the Tarot or Tarock decks. They share many similarities both in appearance and play function. In Central Europe, the Fool, or "Sküs", is the highest trump; elsewhere as an "excuse" ("L'Excuse") that can be played at any time to avoid following suit but cannot win. Practitioners of cartomancy often include a Joker in the standard 52-card deck with a meaning similar to the Fool card of Tarot.
Jack (playing card) of the king ("Kn" versus "K"), the two were easily confused. This confusion was even more pronounced after the markings indicating suits and rankings were moved to the corners of the card, a move which enabled players to "fan" a hand of cards without obscuring the individual suits and ranks. The earliest deck known of this type is from 1693, but such positioning did not become widespread until reintroduced by Hart in 1864, together with the knave-to-jack change. Books of card games published in the third quarter of the 19th century still referred to the "knave" however, a term that