The odd scientific principle discovered by Harris in 1980 makes an amazing coin transposition possible!

Two coins are displayed. One is marked with a large cross with a permanent marker and a spectator confirms that the cross will not rub off the coin.

In full view, the marked coin and the plain coin transpose through the back of a spectator’s own hand.

Fully examinable, easy to do. The scientific principle makes it all work.

• examinable

• use any currency

• easy to perform

• carry it everywhere