My grandpa had this machine tucked away in his basement. It was owned by his dad around 1960. This machine is in very good condition. Everything still works perfectly. If you have any specific questions feel free to e-mail me.
Details (the following info is displayed on the bottom of the base)-
LISTED - 709U MODEL 16
Motorized Wave Display
115 V. 60 CYC. 4 W. 6 RPM
LAVA SIMPLEX INTERNATIONAL INC.
Chicago, ILL. 60613