Antique Slide Projector I Have An Antique Slide Projector, I Want To Know What It's Worth?

I have an antique slide projector, I want to know what it's worth? - antique slide projector

This is a slide projector TDC Vivid Headliner 300, Model 325th I do not know what year it was or what it is. It is in very good condition, works) is still (as I tried today with a few slides from the family of the age. I do not recall needed at home, and I want to sell my next flea market, but I sure, I ask a fair price for what it is. The only thing that can be wrong sometimes stuck with the slides, and is very hot, so it should in a well ventilated to avoid burns, be used.