The effect as the instructions state:
A crystal box stands on the Dragon Altar. The magician places a coin on top of the solid lid of the box and then he places a solid ball on top of the coin. He covers the box with an empty tube. Under cover of darkness, the ball amazingly penetrates both the coin and the lid and ends up inside the crystal box. The box lid coin and ball are ungimmicked. The tube is empty. There are no extra boxes lids coins or ball. And yet with no sleight of hand the magic happens. Dragon Altar is a fabulous magic trick that is very easy to perform yet totaling baffling. Includes illustrated instructions. Condition very fine.