This became quite popular as you could show three coins: an English Penny, 20 Centavo and Half Dollar and close them all in your hand.  Removing Half Dollar to the other hand the question is posed, what do I have in each hand?  The answer should be what has been seen but the opposite is true as when the hands are opened the two Coppers are in the hand they are not supposed to be and likewise with the Half Dollar.  Includes 2 pages of instructions with routine and within you will find the cleanup for the gimmick coins.  Condition very fine.