Double your money by magic!
This precision made brass prop makes dreams come true - it doubles money like magic. The magician places a stack of nickels on the table and covers it with a brass cap. Instantly, the nickels have turned into a stack of dimes! There is no sleight of hand involved in the trick.
Complete with detailed instructions and all necessary apparatus. The cap can be examined before and after the trick by the most attentive spectator. There's nothing to find!