This luxurious multi-story marble machine is the undisputed gem of our Stirling collection. The perfectly synchronized gear and drive wheels bring the steel marbles up in several stages and send them alternating down two curved slides into a brass spiral, at the end of which the cycle begins again. The busy chattering of the engine, the clicking, and clacking of the marbles, and the countless number of moving parts result in a fascinating and comprehensive sensory impression which fascinates even the least interested in engineering. Four different speeds of the marble machine can be adjusted with a belt pulley.
Dimensions: 13" H x 9 1/2" W x 8 1/4" D.
Weight: 12 1/2 lbs.
*Power Plant Engine sold separately*