The classic trick technique with coins from the book "Modern Magic of Coins" - By J.B. Bobo (Russian translation)
In this capture, the coin is hidden on the back of the hand. It is held near the tips of the extended middle and ring fingers by pressure on opposite faces with the tips of the index finger and little finger.
fig. 12 - fig. 13 - fig. 14
To transfer a coin to this position, start from the front grip, and then bend the middle and ring fingers inward, then outward, moving them from one side to the other and at the same time turning the coin 1800.
When you straighten your fingers, the coin will be hidden from the back of your hand, while you are showing an empty palm.
To show the back of the hand, perform the following movements: first you hold your hand with your turned palm towards the audience, then bend your hand in your wrist, gradually clenching your hand into a fist.
In this position, bend the middle and ring fingers inward, then outward, moving the coin in this way inside the hand.
Thus, you transferred the coin from the rear grab to the front and show the audience the empty back.
fig. 15 - fig. 16 - fig. 17
An alternative and more preferable method of demonstrating the back of the hand is as follows: after you have shown an empty palm, begin to turn your hand to show the back side as described above, until you reach the position shown in Fig. .
Put your thumb on the underside of the coin, then straighten your fingers, moving the coin into the grip with your thumb. To show the front of the hand again, follow these steps: grab the coin by the index and middle fingers and release your thumb, rotate it parallel to the floor.
Then, with your thumb, press the coin by the edge to the base of the index finger, translating it in this way into the downs grip.