Interlocking - Sonneveld Four-Piece Cube

Sonneveld Four-Piece Cube
Larger Photograph (71.2K)

 
Sonneveld Four-Piece Cube - Two of Four Pieces
Designer:Dic Sonneveld
Craftsman:Tom Lensch
Category:Interlocking
Material:Maple
Pieces:4

This puzzle, with a burr-like internal mechanism , is very difficult to assemble.