1960's Rainbo "Swag Lamp"

This is one of my favorites from my collection. THE BOX SHOWN IN THE PHOTOS IS FOR INFORMATION PURPOSES ONLY IT IS NOT INCLUDED! It was some how lost during my last move?! I believe this was made in the 60's it could have been the 70's. It Rotates between Red, Blue, Amber, and Green. Or using the rotary knob located on the base, you can stop it on your favorite color of the moment. So the knob does three settings. ON, still: On, rotating : Or off. It is made of a metal of some kind, TIN?! covered in a white enamel paint with golden flake glitter. Made in Chicago, Il. White corded USA plug in with a vintage chain that I attached to hang during use because it does get warm, also it is just weird laying on the table. lol Any questions please don't hesitate to ask!