How new is it? Nice condition? Used condition anywhere from 50-150 but based on what it looks like and age. A newer sealed head ratchet should go for more than an old style.
Funny,that's not even what I was picturing. That ratchet's made by Proto for them. It isn't a sealed head Snap On like I was picturing. I was thinking along the lines of the Snap On (and Williams) made caterpillar ratchets old vs. new.
Still a vey nice ratchet. Can you get a picture of the markings on it? I'd wouldn't mind owning another large ratchet but "I can't buy it and sell it" like Mike on Pickers says.