Larger Photograph (70.9K)
|Designer||:||T. Ryan Guess (aka Stewart Coffin)|
|Craftsman||:||T. Ryan Guess (aka Stewart Coffin)|
|Material||:||Birch Plywood & Mahogany|
|Pieces||:||4, plus the tray|
The tray opening is not square. Note that each of the pieces has two corners with 90° angles and each can be flipped over. A very difficult puzzle. Number 133 in Stewart's numbering system.