Do you like it? If so that is value in of itself. Is the handle bakealite, an early form of plastic? I can't imagine a plastic handle on a homemade knive. Some 4 ought steel wool may reveal a mark of sorts under the rust. Looking at the shape it reminds me of an old "Village Blacksmith" make of blade. That was a brand name until the 50s iirc. Just a wag and a hunch.