The spectator is asked to examine a clear glass and to make sure that it is exactly as it appears to be. A deck of playing cards is then shown to the spectator. The front and back are fanned, showing the cards to be a regular deck and then Hindu shuffled. The magician then reaches in his pocket and acts as though he brings out two invisible quarters. 

The spectator is asked "Have you ever seen invisible quarters?", "No", "Well, there are two of them. You can only see them as they penetrate through the glass."

The magician takes the glass back and holding the deck of cards in the left hand, he places the glass on top of the cards with the mouth of the glass down in the center of the deck. The magician acts as though to pick up one of the quarters and shows it. He then smacks it on top the glass and it penetrates through the glass and lands on top the deck of cards. The quarter is slid off with the edge of the glass onto the table. The spectator is asked if he would like to see it again. Replace the glass as before, pick up the second invisible quarter and show it, smack it through the glass again with the quarter landing on top of the deck. Again, slide the quarter off with the mouth of the glass. Turn the cards over and fan them across the table and accept your applause.