Using a half dollar or similar size coin it is marked for identification and placed in a two door mini cabinet of wood.
The coin is shown up to the last moment before the doors are closed and with a suspicious tilting action by the magician a door is opened after and the coin is shown to have vanished but the audience remembers the tilting action was to the side not being shown.
This happens a few more times with the ultimate reveal of both doors opened and coin vanished but moving over to a small wood container shown moments before the magician picks this up and tilts it over and out slides the very same marked coin!
A time tested classic includes instructions. Coin not supplied. In very fine condition.