show two coins, one of bronze and one of copper, place both coins under
a handkerchief, withdraw the coin of bronze and place it on the handkerchief,
raise slightly the handkerchief to show below the coin of copper is,
but incredibly there will be one of bronze, and when you look up of
the handkerchief we will find one of copper.
you place both coins (bronze and copper) in the palm of your hand, withdraw
the coin of bronze and place it in your pocket, and instantaneously
show the coins have changed places. One of bronze is on in the hand
and other of copper is in the pocket. If you wish it, you can realize
the effect repeatedly.