Handmade from multiple hardwoods for a unique tactile experience and visual appeal
Single solution design ensures a focused and challenging mental workout
Laser-engraved history note adds collectible value and historical context
Includes solution and instructions for reference and study
Large 6.3 x 6.3 inch square opening accommodates all 12 pieces
Summarized by Shop
The Calibron 12 puzzle was designed in 1933 by the son of Thomas Edison, Theodore Edison.
The aim being to fit the 12 pieces into the opening. There is only one solution and this puzzle is rated a level 10 being extremely difficult.
A fun puzzle to play around with as you always seem to get quite close!
This version comes with a wooden co
Piece Count
12
Material
Ash, Maple, Walnut, Oak, Mahogany, Birch, and more