As I was looking through some junk in my closet the other day, I stumbled upon this garage-sale relic. I think it’s some sort of circular plotter or spirograph, but I don’t know who made it or what it’s supposed to do. It doesn’t have any markings on it beside the ones you see in the picture.
Do you know what it is?
^Top
^Bottom
^Close-up of gear
Visit my blog for a better explanation.
