If it helps, what you have is a 2 man crosscut saw with a great American tooth pattern.
A little less common than the simpler farmer's saws without the big gullets, but much more common than interesting felling saws. I would guess the price on ebay depends on whether someone near you wants one, as they are pretty niche interest and usually collection only. It woul be a shame to scrap it, they are actually quite nice to use. Slow, but not nearly as hard work as you might expect.