Card back designs popular with magicians who fan packs of cards

Magicians usually fan a pack of cards so that the indices on the cards are all visible, so proving to the audience that the cards are all different. Some magicians go beyond this and feature the different patterns possible by fanning the pack in different directions. These card back designs were popular because the coloured pattern created was different for each of the four ways in which the backs of the pack could be fanned. The Universal Playing Card Co. Ltd. produced both of these back designs in red and green.