The magician asks for a coin from a spectator and instructs him to sign his initials on the coin. The magician then takes the coin and vanishes it. He produces a box, neatly tied with ribbon that is completely sealed. Magician has the spectator untie the ribbon and open the first of four boxes. Each box is separately tied with ribbon except the last, which is actually locked with a miniature padlock. Upon opening the last box, the spectator finds the coin that he originally signed. This effect also works very well with a borrowed finger ring. Add more mystery with a rattle box or devils hank.