Calibron 12 - Theodore Edison's 1933 Wooden Packing Puzzle old yankee facade making it ideal for those

making it ideal for those seeking a rewarding brain teaser

real material

Our "The Great Cat Escape" puzzle isn't just a toy

Germany has shown that the minimum square that these circles will fit into (with no overlap) has a side length equal to 18

Calibron 12 - Theodore Edison's 1933 Wooden Packing Puzzle old yankee facade making it ideal for thoseCalibron 12 is a wooden packing puzzle designed in 1933 by Theodore Miller Edison, the youngest son of Thomas Edison, an MIT trained physicist who held more than 80 U. S. patents and founded Calibron Industries in West Orange, New Jersey. We build this faithful reproduction at Creative Crafthouse, our family owned wooden puzzle and game shop, and make every set in our Hudson, Florida workshop. The goal is to arrange twelve wooden pieces into a single