Paul Schatz Furniture wood table with Water Town Slider Co Wood slider

I have an old Watertown Slide Co Wood Slider Dining Table. Watertown made sliders not tables, so I not know the designer or manufacturer of the table. It was sold originally at Paul Schatz Furniture, as you can see by the photo of the divider holder. Was told it's most likely a 50's or 60's model however I can only confirm that the company stopped making wood sliders in 1973, so its at LEAST that old. 3 different extended positions. Great table but I don't need it anymore. Fair condition, some wear and tear, but a very nice piece of furniture and no major damage anywhere. 

Just curious what it's worth. No idea what era other than I know Watertown stopped making wood sliders in '73

Thanks!