Reminding one of the Russian Babushka Nesting Dolls, here is a video of what you could call a Chinese equivalent.

A coin is marked for future recognition, and rapidly disappears.

The magician produces a red Chinese pill-box.
Inside this pill-box is another, and another, and another.

When the last pill-box is opened, the marked coin is found inside.
All items can be minutely examined by the audience.

Video shows the full effect.