Orrery working solar system model, electric driven. Made from solid brass silver, silver & gold plate, 4kgs in weight.
You can track and predict the planets positions. Each gear layer controls a planet to the exact scale speed evan the earth's moon orbits the earth exactly to scale. Made to the highest quality and material built to last a lifetime, comes with 52 magazines explaining setting and operating and a wealth of information about the universe. Maintenance toolkit also included and is in new condition.