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Star of David
A shape-changing puzzle from Stewart Coffin .
Six interlocking, dissimilar pieces of Honduras Mahogany which assemble different ways to form various geometrical figures having an axis of symmetry . The assembled puzzle has the shape of a symmetrical column with the Star of David as cross-sectional end faces .
Different assembly combinations yield the different shapes .
You can view the solution here
PinHole . . . from Stewart Coffin .
So called because the locking mechanism are wooden dowels that set into their complimentary holes .
Snowflake . . . from Stewart Coffin
Made from Hydrastone - a combination of US Gypsum "industrial strength" Portland cement and plaster .
Two-Dimensional combinatorial hexagon puzzle .
Cube . . . from Stewart Coffin . Pentangle's version is called 'Wookey Hole' .
Made of Cherry, Mahogany, Maple, Rosewood & Padauk .