e/One-way deck

Information
has gloss	eng: A one-way deck is a deck of playing cards where the back of the cards has a pattern which can be oriented to have a "top" and "bottom". Magicians and card sharps can use the orientations of cards in one-way decks to encode information that allows them to perform card tricks.
lexicalization	eng: one-way deck
instance of	(noun) one of a pack of cards that are used to play card games playing card