Interlocking - Dutch Rings

Dutch Rings
Larger Photograph (62.2K)

 
Dutch Rings
Larger Photograph (65.1K)
Designer:Oskar van Deventer
Craftsman:Tom Lensch
Category:Interlocking
Material:Mahogany
Pieces:4

The four rings are linked together and assemble into the shape shown in the 1st photograph. Not an easy puzzle - especially is you don't know the final shape.