Take-Apart - The Invisible Gift

The Invisible Gift
 
The Invisible Gift - Solved Original
Craftsman:John Berkeley
Category:Take-Apart
Material:Cocobolo

It is very easy to simply open the box and see inside, but there is a coin hidden in the lid or bottom (in the originals). Tapping the inside of the top will cause a concealed cover to fall out, revealing the coin. This is shown in the solved original in the bottom photograph.