Surpriso Deck was a mechanical deck and then later a forcing deck created by two different magicians.
Surpriso Deck by Evans Brown
Advertising: Apparently an ordinary deck of playing cards. A spectator inserts the blade of a knife into the deck, and the card above the blade, and the card below the blade is noticed. The performer now wraps the deck in a piece of newspaper. He tells him that regardless of the fact that there are fifty chance of missing,if the spectator will but "concentrate" his mind upon the two previously selected cards he will be able to repeat the performance. The knife blade is inserted into the package—the paper is then torn away and the blade is discovered between the two previously selected cards. My mechanical version of the well known "Stabbed Card Trick," No skill nor sleights, Only one deck used.
Surpriso Deck by Loring Campbell
Effect: the deck is shuffled and one is selected by the spectator. The magician puts the deck in his pocket after spectator shuffles the deck. The magician offers to make a bet that he can find the selected card, but wants five chances to find it. Five cards are taken out of the pocket and put face down on the table. Card by card the magician fails. The spectator reveals that his card was the Joker. SURPRISO, the five cards one at a time so they are face up and they are seen to spell out the word JOKER.
It was some time around 1944. It was later described how to make the deck in the September 1947 issue of the Linking Ring.