Larger Photograph (70.9K)
| Designer | : | T. Ryan Guess (aka Stewart Coffin) |
| Craftsman | : | T. Ryan Guess (aka Stewart Coffin) |
| Category | : | Put-Together |
| 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. | ||