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12 Piece Wooden Sheet

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12 Piece Wooden Sheet.jpg
12 Piece Wooden Sheet Puzzle by Jack Krijnen
Photo courtesy of Jack Krijnen
Name
12 Piece Wooden Sheet
Limited to
4
Manufacturer
Dimensions
4.8"
Year
2010
Availability
Not Available
# of Pieces
12
Material
Curupixa
Objective
Disassemble and reassemble the 12 pieces into the shape shown


Stewart Coffin designed the 12-Piece Sheet Metal Puzzle in 1971. It is now in the Slocum collection at the Lilly Library. In 2009 it was discussed at the Renegades Puzzlers forum. It can also be made of wood! Johan Heyns provided drawings including dimensions. Jack Krijnen made a slight correction by adding a 60 degree mitre on the notches and was the first to make one. Unlike the metal version, the wooden one will not come apart in two halves. It's a coordinated motion puzzle with 6 pairs of 'sheets'.
Jack Krijnen donated the first wooden specimen to the Lilly Library via Jerry Slocum. He made 3 more copies; they are now (August 2011) in the collections of Johan Heyns, John Devost and Jack Krijnen.