This deck was touched by Midas, and therefore is completely turned into gold. The court cards, the pips, the backs. Even the box.
The only exception are two of the three Jokers included in the deck, since King Midas and Silenus are immune to the “Golden Touch”.
Silenus was Dionysus foster father, that was found and hosted by Midas. The satyr rescue was the reason that the God of Wine granted the wish to the greedy Phrygian King.
The third Joker represent Midas young daughter, who tried to embrace him and was also turned into gold.