Ultimate Card Thru Window Illusion

Cyril Takayama, makes the impossible possible with this illusion.

Definitely there is sliding thin glasses at both sides of the tank.
1) watch his hand at 1:14 to 1:16 when he passes the card to his assistant
2) one side of the glass is used to lift the signed card up when the thrown cards by the guy fall downwards hence you dont get to see the signed card coming upwards because falling cards hide this single card
3)second side of thin glass is outwards and he puts the tissue cleverly to hide the movement and gets the cards out through the hole within the tank

Very nice illusion
But hope my explanation will satisfy you !