314 different six block burrs in one puzzle... plus one other puzzle.
Bill Cutler's name in synonymous with the six piece burr. In 1977-78 he published an article called The Six-Piece Burr in the Journal of Recreational Mathematics in which he showed there are 25 different pieces which in combination can make up to 314 different six piece burrs.
There are 42 burr pieces in total which can be combined in different ways to make up the 314 different six block burrs.
+1 How to open the box that contains them?
Made from Queensland Silver Ash they are presented inside a 'trick' locking box of New Guinea Rosewood.