Note from Martin:

A super little close up magic trick that can be ready to perform at any time.Good magic that is easy to do.This little miracle has stood the test of time. The magician borrows a coin and has it signed by a spectator, the coin is caused to vanish (purchaser must already know a method for this). A matchbox is placed onto the table and the spectator is invited to open it - inside is another, but smaller matchbox. This in turn is opened - inside is a small cloth bag sealed by a rubber band, this is opened to reveal the signed coin.