Neutron Robot. Special Edition Robot Tin Toy Windup. Rare import version by "St. John" toys. Neutron Robot stands 5 1/2 inches tall and designed with very colorful tin lithography featuring gear design in his chest. He walks forward with moving struts under his feet often referred to as "pin walking action", and also features mechanical swaying arms. Includes colorful retro style box graphics. Robot is guaranteed new direct from the factory and can sometimes have minor scuffs due to the original method of hand production originally used in the 1950's.