This unusual puzzle is made from hardwood from Northern New South Wales and mounted on a jarrah base.
For only three pieces this puzzle is surprisingly difficult. Two of the pieces consists of three 50mm cubes and the other of four 50mm cubes.
The inventor of this puzzle is STEWART COFFIN. The puzzles is #38 in Stewart's numbering system and was originally called "Three Piece Block" puzzle. Stewart made the puzzle for a company who wanted to use it as a promotional item. From 1980-1983 he made 350 only of these puzzles.