Le Petit Journal illustré 10 février 1924

To amaze your friends
The balancing pieces

You take two one-franc coins from your wallet. You place them slice by slice and hold them like this, between your thumb and index finger, horizontally or vertically without them falling. After which you put them back in your wallet.
You can invite your viewers to do the same. They will try in vain. You can donate the parts to examine. They are not fake.
Explanation. Hidden in your wallet is a piece of parallelepiped match the size of the diameter of two one-franc coins. The piece of match is between the thumb and index finger which hold the two pieces and behind them. Resting on this small piece of wood, they do not fall.
The process is very simple as you can see, but you had to find it as they say.
balancing pièces

a Le Petit journal illustré 19240210 art 09 pièces équilibre 9