English. Circa 1940. A bright yellow, 2 ½” ball is shown and placed into a wood cabinet with four doors. After some sucker byplay of tipping the box from side to side (with the ball “accidentally” seen inside of the box at one point), all doors are opened and the ball is gone. It is later discovered in the magician’s hat. This is a unique version of the effect, incorporating a small yellow balloon, inflated via a valve at the back of the box, substituting for the solid ball during part of the routine. When the box is closed, the air valve is opened, causing the balloon to deflate and making it appear that the ball has vanished when the doors of the box are opened. Very clever. Excellent workmanship. Rare.