Jack Puzzle __BOOK in collaboration with Dan and

in collaboration with Dan and Dave

The rules for this puzzle are simple: Start with the rocket standing upright on a flat surface and place the wooden cone inside

The Brass Cannon Puzzle is based on a wooden version called “Cannon and Ball” which was described in Professor Hoffmann's book Puzzles Old and New in 1893

in both paper and fabric

The key is to gently sweep the bottom of the top with one hand

Jack Puzzle __BOOK in collaboration with Dan andThis hefty interlocking puzzle from Craighill is comprised of six notched bars that combine to create a "jack" shape. Each piece is exactly milled from brass by a skilled machinist in Rhode Island and the assembled puzzle weighs in at almost a pound. A sleek and modern take on the traditional six piece burr puzzle.